Make event names of TRACE_EVENT_SAMPLING_STATE macros more descriptive

Source/bindings/tests/results/V8TestObjectPython.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 105 matching lines @@
 static void readonlyStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->readonlyStringAttribute(), info.GetIsolate());
 }
 
 static void readonlyStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::readonlyStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void readonlyTestInterfaceEmptyAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     RefPtr<TestInterfaceEmpty> result = imp->readonlyTestInterfaceEmptyAttribute();
     if (result && DOMDataStore::setReturnValueFromWrapper<V8TestInterfaceEmpty>(info.GetReturnValue(), result.get()))
         return;
     v8::Handle<v8::Value> wrapper = toV8(result.get(), info.Holder(), info.GetIsolate());
     if (!wrapper.IsEmpty()) {
         V8HiddenPropertyName::setNamedHiddenReference(info.Holder(), "readonlyTestInterfaceEmptyAttribute", wrapper);
         v8SetReturnValue(info, wrapper);
     }
 }
 
 static void readonlyTestInterfaceEmptyAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::readonlyTestInterfaceEmptyAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void readonlyLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->readonlyLongAttribute());
 }
 
 static void readonlyLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::readonlyLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void dateAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8DateOrNull(imp->dateAttribute(), info.GetIsolate()));
 }
 
 static void dateAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::dateAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void dateAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(double, cppValue, toWebCoreDate(jsValue));
     imp->setDateAttribute(cppValue);
 }
 
 static void dateAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::dateAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void stringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->stringAttribute(), info.GetIsolate());
 }
 
 static void stringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::stringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void stringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     imp->setStringAttribute(cppValue);
 }
 
 static void stringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::stringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void readonlyDOMTimeStampAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, static_cast<double>(imp->readonlyDOMTimeStampAttribute()));
 }
 
 static void readonlyDOMTimeStampAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::readonlyDOMTimeStampAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void booleanAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueBool(info, imp->booleanAttribute());
 }
 
 static void booleanAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::booleanAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void booleanAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(bool, cppValue, jsValue->BooleanValue());
     imp->setBooleanAttribute(cppValue);
 }
 
 static void booleanAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::booleanAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void byteAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->byteAttribute());
 }
 
 static void byteAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::byteAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void byteAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "byteAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt8(jsValue, exceptionState), exceptionState);
     imp->setByteAttribute(cppValue);
 }
 
 static void byteAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::byteAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void doubleAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->doubleAttribute());
 }
 
 static void doubleAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::doubleAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void doubleAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(double, cppValue, static_cast<double>(jsValue->NumberValue()));
     imp->setDoubleAttribute(cppValue);
 }
 
 static void doubleAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::doubleAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void floatAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->floatAttribute());
 }
 
 static void floatAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::floatAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void floatAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(float, cppValue, static_cast<float>(jsValue->NumberValue()));
     imp->setFloatAttribute(cppValue);
 }
 
 static void floatAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::floatAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void longAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->longAttribute());
 }
 
 static void longAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::longAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void longAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "longAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setLongAttribute(cppValue);
 }
 
 static void longAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::longAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void longLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, static_cast<double>(imp->longLongAttribute()));
 }
 
 static void longLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::longLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void longLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "longLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(long long, cppValue, toInt64(jsValue, exceptionState), exceptionState);
     imp->setLongLongAttribute(cppValue);
 }
 
 static void longLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::longLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void octetAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueUnsigned(info, imp->octetAttribute());
 }
 
 static void octetAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::octetAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void octetAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "octetAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned, cppValue, toUInt8(jsValue, exceptionState), exceptionState);
     imp->setOctetAttribute(cppValue);
 }
 
 static void octetAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::octetAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void shortAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->shortAttribute());
 }
 
 static void shortAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::shortAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void shortAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "shortAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt16(jsValue, exceptionState), exceptionState);
     imp->setShortAttribute(cppValue);
 }
 
 static void shortAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::shortAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unsignedLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueUnsigned(info, imp->unsignedLongAttribute());
 }
 
 static void unsignedLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::unsignedLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unsignedLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "unsignedLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned, cppValue, toUInt32(jsValue, exceptionState), exceptionState);
     imp->setUnsignedLongAttribute(cppValue);
 }
 
 static void unsignedLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::unsignedLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unsignedLongLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, static_cast<double>(imp->unsignedLongLongAttribute()));
 }
 
 static void unsignedLongLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::unsignedLongLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unsignedLongLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "unsignedLongLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned long long, cppValue, toUInt64(jsValue, exceptionState), exceptionState);
     imp->setUnsignedLongLongAttribute(cppValue);
 }
 
 static void unsignedLongLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::unsignedLongLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unsignedShortAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueUnsigned(info, imp->unsignedShortAttribute());
 }
 
 static void unsignedShortAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::unsignedShortAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unsignedShortAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "unsignedShortAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned, cppValue, toUInt16(jsValue, exceptionState), exceptionState);
     imp->setUnsignedShortAttribute(cppValue);
 }
 
 static void unsignedShortAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::unsignedShortAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testInterfaceEmptyAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->testInterfaceEmptyAttribute(), imp);
 }
 
 static void testInterfaceEmptyAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::testInterfaceEmptyAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testInterfaceEmptyAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterfaceEmpty*, cppValue, V8TestInterfaceEmpty::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setTestInterfaceEmptyAttribute(WTF::getPtr(cppValue));
 }
 
 static void testInterfaceEmptyAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::testInterfaceEmptyAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testObjectPythonAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->testObjectPythonAttribute(), imp);
 }
 
 static void testObjectPythonAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::testObjectPythonAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testObjectPythonAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestObjectPython*, cppValue, V8TestObjectPython::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestObjectPython::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setTestObjectPythonAttribute(WTF::getPtr(cppValue));
 }
 
 static void testObjectPythonAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::testObjectPythonAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidCallbackFunctionAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->voidCallbackFunctionAttribute().v8Value());
 }
 
 static void voidCallbackFunctionAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::voidCallbackFunctionAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidCallbackFunctionAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptValue, cppValue, ScriptValue(jsValue, info.GetIsolate()));
     imp->setVoidCallbackFunctionAttribute(cppValue);
 }
 
 static void voidCallbackFunctionAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::voidCallbackFunctionAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void anyCallbackFunctionOptionalAnyArgAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->anyCallbackFunctionOptionalAnyArgAttribute().v8Value());
 }
 
 static void anyCallbackFunctionOptionalAnyArgAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::anyCallbackFunctionOptionalAnyArgAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void anyCallbackFunctionOptionalAnyArgAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptValue, cppValue, ScriptValue(jsValue, info.GetIsolate()));
     imp->setAnyCallbackFunctionOptionalAnyArgAttribute(cppValue);
 }
 
 static void anyCallbackFunctionOptionalAnyArgAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::anyCallbackFunctionOptionalAnyArgAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void cssAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->cssAttribute());
 }
 
 static void cssAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::cssAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void cssAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "cssAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setCSSAttribute(cppValue);
 }
 
 static void cssAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::cssAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void imeAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->imeAttribute());
 }
 
 static void imeAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::imeAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void imeAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "imeAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setIMEAttribute(cppValue);
 }
 
 static void imeAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::imeAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void svgAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->svgAttribute());
 }
 
 static void svgAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::svgAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void svgAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "svgAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setSVGAttribute(cppValue);
 }
 
 static void svgAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::svgAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void xmlAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->xmlAttribute());
 }
 
 static void xmlAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::xmlAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void xmlAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "xmlAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setXMLAttribute(cppValue);
 }
 
 static void xmlAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::xmlAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nodeFilterAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->nodeFilterAttribute(), imp);
 }
 
 static void nodeFilterAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::nodeFilterAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nodeFilterAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(RefPtr<NodeFilter>, cppValue, toNodeFilter(jsValue, info.GetIsolate()));
     imp->setNodeFilterAttribute(WTF::getPtr(cppValue));
 }
 
 static void nodeFilterAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::nodeFilterAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void serializedScriptValueAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->serializedScriptValueAttribute() ? imp->serializedScriptValueAttribute()->deserialize() : v8::Handle<v8::Value>(v8::Null(info.GetIsolate())));
 }
 
 static void serializedScriptValueAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::serializedScriptValueAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void serializedScriptValueAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(RefPtr<SerializedScriptValue>, cppValue, SerializedScriptValue::create(jsValue, info.GetIsolate()));
     imp->setSerializedScriptValueAttribute(WTF::getPtr(cppValue));
 }
 
 static void serializedScriptValueAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::serializedScriptValueAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void anyAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->anyAttribute().v8Value());
 }
 
 static void anyAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::anyAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void anyAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptValue, cppValue, ScriptValue(jsValue, info.GetIsolate()));
     imp->setAnyAttribute(cppValue);
 }
 
 static void anyAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::anyAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void promiseAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->promiseAttribute().v8Value());
 }
 
 static void promiseAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::promiseAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void promiseAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptPromise, cppValue, ScriptPromise(jsValue));
     imp->setPromiseAttribute(cppValue);
 }
 
 static void promiseAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::promiseAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void windowAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->windowAttribute(), imp);
 }
 
 static void windowAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::windowAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void windowAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(DOMWindow*, cppValue, toNativeDOMWindow(jsValue, info.GetIsolate()));
     imp->setWindowAttribute(WTF::getPtr(cppValue));
 }
 
 static void windowAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::windowAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void documentAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->documentAttribute(), imp);
 }
 
 static void documentAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::documentAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void documentAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Document*, cppValue, V8Document::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8Document::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setDocumentAttribute(WTF::getPtr(cppValue));
 }
 
 static void documentAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::documentAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void documentFragmentAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->documentFragmentAttribute(), imp);
 }
 
 static void documentFragmentAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::documentFragmentAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void documentFragmentAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(DocumentFragment*, cppValue, V8DocumentFragment::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8DocumentFragment::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setDocumentFragmentAttribute(WTF::getPtr(cppValue));
 }
 
 static void documentFragmentAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::documentFragmentAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void documentTypeAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->documentTypeAttribute(), imp);
 }
 
 static void documentTypeAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::documentTypeAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void documentTypeAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(DocumentType*, cppValue, V8DocumentType::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8DocumentType::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setDocumentTypeAttribute(WTF::getPtr(cppValue));
 }
 
 static void documentTypeAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::documentTypeAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void elementAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->elementAttribute(), imp);
 }
 
 static void elementAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::elementAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void elementAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Element*, cppValue, V8Element::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8Element::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setElementAttribute(WTF::getPtr(cppValue));
 }
 
 static void elementAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::elementAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void entityAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->entityAttribute(), imp);
 }
 
 static void entityAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::entityAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void entityAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Entity*, cppValue, V8Entity::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8Entity::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setEntityAttribute(WTF::getPtr(cppValue));
 }
 
 static void entityAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::entityAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nodeAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->nodeAttribute(), imp);
 }
 
 static void nodeAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::nodeAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nodeAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Node*, cppValue, V8Node::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setNodeAttribute(WTF::getPtr(cppValue));
 }
 
 static void nodeAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::nodeAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void shadowRootAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->shadowRootAttribute(), imp);
 }
 
 static void shadowRootAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::shadowRootAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void shadowRootAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ShadowRoot*, cppValue, V8ShadowRoot::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8ShadowRoot::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setShadowRootAttribute(WTF::getPtr(cppValue));
 }
 
 static void shadowRootAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::shadowRootAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void arrayBufferAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->arrayBufferAttribute(), imp);
 }
 
 static void arrayBufferAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::arrayBufferAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void arrayBufferAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ArrayBuffer*, cppValue, jsValue->IsArrayBuffer() ? V8ArrayBuffer::toNative(v8::Handle<v8::ArrayBuffer>::Cast(jsValue)) : 0);
     imp->setArrayBufferAttribute(WTF::getPtr(cppValue));
 }
 
 static void arrayBufferAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::arrayBufferAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void float32ArrayAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->float32ArrayAttribute(), imp);
 }
 
 static void float32ArrayAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::float32ArrayAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void float32ArrayAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Float32Array*, cppValue, jsValue->IsFloat32Array() ? V8Float32Array::toNative(v8::Handle<v8::Float32Array>::Cast(jsValue)) : 0);
     imp->setFloat32ArrayAttribute(WTF::getPtr(cppValue));
 }
 
 static void float32ArrayAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::float32ArrayAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void uint8ArrayAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->uint8ArrayAttribute(), imp);
 }
 
 static void uint8ArrayAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::uint8ArrayAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void uint8ArrayAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Uint8Array*, cppValue, jsValue->IsUint8Array() ? V8Uint8Array::toNative(v8::Handle<v8::Uint8Array>::Cast(jsValue)) : 0);
     imp->setUint8ArrayAttribute(WTF::getPtr(cppValue));
 }
 
 static void uint8ArrayAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::uint8ArrayAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void selfAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->self(), imp);
 }
 
 static void selfAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::selfAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void readonlyEventTargetAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->readonlyEventTargetAttribute(), imp);
 }
 
 static void readonlyEventTargetAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::readonlyEventTargetAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void readonlyWindowAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->readonlyWindowAttribute(), imp);
 }
 
 static void readonlyWindowAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::readonlyWindowAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void htmlCollectionAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->htmlCollectionAttribute(), imp);
 }
 
 static void htmlCollectionAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::htmlCollectionAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void htmlElementAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->htmlElementAttribute(), imp);
 }
 
 static void htmlElementAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::htmlElementAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void stringArrayAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8Array(imp->stringArrayAttribute(), info.GetIsolate()));
 }
 
 static void stringArrayAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::stringArrayAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void stringArrayAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<String>, cppValue, toNativeArray<String>(jsValue, 0, info.GetIsolate()));
     imp->setStringArrayAttribute(cppValue);
 }
 
 static void stringArrayAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::stringArrayAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testInterfaceEmptyArrayAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8Array(imp->testInterfaceEmptyArrayAttribute(), info.GetIsolate()));
 }
 
 static void testInterfaceEmptyArrayAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::testInterfaceEmptyArrayAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testInterfaceEmptyArrayAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<RefPtr<TestInterfaceEmpty> >, cppValue, (toRefPtrNativeArray<TestInterfaceEmpty, V8TestInterfaceEmpty>(jsValue, 0, info.GetIsolate())));
     imp->setTestInterfaceEmptyArrayAttribute(cppValue);
 }
 
 static void testInterfaceEmptyArrayAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::testInterfaceEmptyArrayAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void floatArrayAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8Array(imp->floatArrayAttribute(), info.GetIsolate()));
 }
 
 static void floatArrayAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::floatArrayAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void floatArrayAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<float>, cppValue, toNativeArray<float>(jsValue, 0, info.GetIsolate()));
     imp->setFloatArrayAttribute(cppValue);
 }
 
 static void floatArrayAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::floatArrayAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nullableStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     bool isNull = false;
     String jsValue = imp->nullableStringAttribute(isNull);
     if (isNull) {
         v8SetReturnValueNull(info);
         return;
     }
     v8SetReturnValueString(info, jsValue, info.GetIsolate());
 }
 
 static void nullableStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::nullableStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nullableStringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     imp->setNullableStringAttribute(cppValue);
 }
 
 static void nullableStringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::nullableStringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nullableLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     bool isNull = false;
     int jsValue = imp->nullableLongAttribute(isNull);
     if (isNull) {
         v8SetReturnValueNull(info);
         return;
     }
     v8SetReturnValueInt(info, jsValue);
 }
 
 static void nullableLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::nullableLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nullableLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "nullableLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setNullableLongAttribute(cppValue);
 }
 
 static void nullableLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::nullableLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testEnumAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->testEnumAttribute(), info.GetIsolate());
 }
 
 static void testEnumAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::testEnumAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testEnumAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     String string = cppValue;
     if (!(string == "" || string == "EnumValue1" || string == "EnumValue2" || string == "EnumValue3"))
         return;
     imp->setTestEnumAttribute(cppValue);
 }
 
 static void testEnumAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::testEnumAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void staticStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     v8SetReturnValueString(info, TestObjectPython::staticStringAttribute(), info.GetIsolate());
 }
 
 static void staticStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::staticStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void staticStringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     TestObjectPython::setStaticStringAttribute(cppValue);
 }
 
 static void staticStringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::staticStringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void staticLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     v8SetReturnValueInt(info, TestObjectPython::staticLongAttribute());
 }
 
 static void staticLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::staticLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void staticLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "staticLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     TestObjectPython::setStaticLongAttribute(cppValue);
 }
 
 static void staticLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::staticLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void eventHandlerAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     EventListener* jsValue = imp->eventHandlerAttribute(isolatedWorldForIsolate(info.GetIsolate()));
     v8SetReturnValue(info, jsValue ? v8::Handle<v8::Value>(V8AbstractEventListener::cast(jsValue)->getListenerObject(imp->executionContext())) : v8::Handle<v8::Value>(v8::Null(info.GetIsolate())));
 }
 
 static void eventHandlerAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::eventHandlerAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void eventHandlerAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     transferHiddenDependency(info.Holder(), imp->eventHandlerAttribute(isolatedWorldForIsolate(info.GetIsolate())), jsValue, V8TestObjectPython::eventListenerCacheIndex, info.GetIsolate());
     imp->setEventHandlerAttribute(V8EventListenerList::getEventListener(jsValue, true, ListenerFindOrCreate), isolatedWorldForIsolate(info.GetIsolate()));
 }
 
 static void eventHandlerAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::eventHandlerAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessForAllWorldsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingAccessForAllWorldsLongAttribute());
 }
 
 static void activityLoggingAccessForAllWorldsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger())
         contextData->activityLogger()->log("TestObjectPython.activityLoggingAccessForAllWorldsLongAttribute", 0, 0, "Getter");
     TestObjectPythonV8Internal::activityLoggingAccessForAllWorldsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessForAllWorldsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingAccessForAllWorldsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingAccessForAllWorldsLongAttribute(cppValue);
 }
 
 static void activityLoggingAccessForAllWorldsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger()) {
         v8::Handle<v8::Value> loggerArg[] = { jsValue };
         contextData->activityLogger()->log("TestObjectPython.activityLoggingAccessForAllWorldsLongAttribute", 1, &loggerArg[0], "Setter");
     }
     TestObjectPythonV8Internal::activityLoggingAccessForAllWorldsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterForAllWorldsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingGetterForAllWorldsLongAttribute());
 }
 
 static void activityLoggingGetterForAllWorldsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger())
         contextData->activityLogger()->log("TestObjectPython.activityLoggingGetterForAllWorldsLongAttribute", 0, 0, "Getter");
     TestObjectPythonV8Internal::activityLoggingGetterForAllWorldsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterForAllWorldsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingGetterForAllWorldsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingGetterForAllWorldsLongAttribute(cppValue);
 }
 
 static void activityLoggingGetterForAllWorldsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::activityLoggingGetterForAllWorldsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingSetterForAllWorldsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingSetterForAllWorldsLongAttribute());
 }
 
 static void activityLoggingSetterForAllWorldsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::activityLoggingSetterForAllWorldsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingSetterForAllWorldsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingSetterForAllWorldsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingSetterForAllWorldsLongAttribute(cppValue);
 }
 
 static void activityLoggingSetterForAllWorldsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger()) {
         v8::Handle<v8::Value> loggerArg[] = { jsValue };
         contextData->activityLogger()->log("TestObjectPython.activityLoggingSetterForAllWorldsLongAttribute", 1, &loggerArg[0], "Setter");
     }
     TestObjectPythonV8Internal::activityLoggingSetterForAllWorldsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void cachedAttributeAnyAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::String> propertyName = v8AtomicString(info.GetIsolate(), "cachedAttributeAnyAttribute");
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (!imp->isValueDirty()) {
         v8::Handle<v8::Value> jsValue = info.Holder()->GetHiddenValue(propertyName);
         if (!jsValue.IsEmpty()) {
             v8SetReturnValue(info, jsValue);
             return;
         }
     }
     ScriptValue jsValue = imp->cachedAttributeAnyAttribute();
     info.Holder()->SetHiddenValue(propertyName, jsValue.v8Value());
     v8SetReturnValue(info, jsValue.v8Value());
 }
 
 static void cachedAttributeAnyAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::cachedAttributeAnyAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void cachedAttributeAnyAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptValue, cppValue, ScriptValue(jsValue, info.GetIsolate()));
     imp->setCachedAttributeAnyAttribute(cppValue);
     info.Holder()->DeleteHiddenValue(v8AtomicString(info.GetIsolate(), "cachedAttributeAnyAttribute")); // Invalidate the cached value.
 }
 
 static void cachedAttributeAnyAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::cachedAttributeAnyAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithExecutionContextAnyAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     ExecutionContext* scriptContext = getExecutionContext();
     v8SetReturnValue(info, imp->callWithExecutionContextAnyAttribute(scriptContext).v8Value());
 }
 
 static void callWithExecutionContextAnyAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::callWithExecutionContextAnyAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithExecutionContextAnyAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptValue, cppValue, ScriptValue(jsValue, info.GetIsolate()));
     ExecutionContext* scriptContext = getExecutionContext();
     imp->setCallWithExecutionContextAnyAttribute(scriptContext, cppValue);
 }
 
 static void callWithExecutionContextAnyAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::callWithExecutionContextAnyAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void checkSecurityForNodeReadonlyDocumentAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     ExceptionState exceptionState(ExceptionState::GetterContext, "checkSecurityForNodeReadonlyDocumentAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (!BindingSecurity::shouldAllowAccessToNode(imp->checkSecurityForNodeReadonlyDocumentAttribute(), exceptionState)) {
         v8SetReturnValueNull(info);
         exceptionState.throwIfNeeded();
         return;
     }
     v8SetReturnValueFast(info, imp->checkSecurityForNodeReadonlyDocumentAttribute(), imp);
 }
 
 static void checkSecurityForNodeReadonlyDocumentAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::checkSecurityForNodeReadonlyDocumentAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 #if ENABLE(CONDITION)
 static void conditionalLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->conditionalLongAttribute());
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION)
 static void conditionalLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::conditionalLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION)
 static void conditionalLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "conditionalLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setConditionalLongAttribute(cppValue);
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION)
 static void conditionalLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::conditionalLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 static void conditionalAndLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->conditionalAndLongAttribute());
 }
 #endif // ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 
 #if ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 static void conditionalAndLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::conditionalAndLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 
 #if ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 static void conditionalAndLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "conditionalAndLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setConditionalAndLongAttribute(cppValue);
 }
 #endif // ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 
 #if ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 static void conditionalAndLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::conditionalAndLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 
 #if ENABLE(CONDITION_1) || ENABLE(CONDITION_2)
 static void conditionalOrLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->conditionalOrLongAttribute());
 }
 #endif // ENABLE(CONDITION_1) || ENABLE(CONDITION_2)
 
 #if ENABLE(CONDITION_1) || ENABLE(CONDITION_2)
 static void conditionalOrLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::conditionalOrLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION_1) || ENABLE(CONDITION_2)
 
 #if ENABLE(CONDITION_1) || ENABLE(CONDITION_2)
 static void conditionalOrLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "conditionalOrLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setConditionalOrLongAttribute(cppValue);
 }
 #endif // ENABLE(CONDITION_1) || ENABLE(CONDITION_2)
 
 #if ENABLE(CONDITION_1) || ENABLE(CONDITION_2)
 static void conditionalOrLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::conditionalOrLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION_1) || ENABLE(CONDITION_2)
 
 static void customObjectAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8TestObjectPython::customObjectAttributeAttributeGetterCustom(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customObjectAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8TestObjectPython::customObjectAttributeAttributeSetterCustom(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customGetterLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8TestObjectPython::customGetterLongAttributeAttributeGetterCustom(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customGetterLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "customGetterLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setCustomGetterLongAttribute(cppValue);
 }
 
 static void customGetterLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::customGetterLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customGetterReadonlyObjectAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8TestObjectPython::customGetterReadonlyObjectAttributeAttributeGetterCustom(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customSetterLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->customSetterLongAttribute());
 }
 
 static void customSetterLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::customSetterLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customSetterLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8TestObjectPython::customSetterLongAttributeAttributeSetterCustom(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 #if ENABLE(CONDITION)
 static void customLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8TestObjectPython::customLongAttributeAttributeGetterCustom(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION)
 static void customLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8TestObjectPython::customLongAttributeAttributeSetterCustom(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION)
 
 static void customElementsCallbacksReadonlyLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->customElementsCallbacksReadonlyLongAttribute());
 }
 
 static void customElementsCallbacksReadonlyLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::customElementsCallbacksReadonlyLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void deprecatedLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->deprecatedLongAttribute());
 }
 
 static void deprecatedLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     UseCounter::countDeprecation(activeExecutionContext(), UseCounter::LongAttribute);
     TestObjectPythonV8Internal::deprecatedLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void deprecatedLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "deprecatedLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setDeprecatedLongAttribute(cppValue);
 }
 
 static void deprecatedLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     UseCounter::countDeprecation(activeExecutionContext(), UseCounter::LongAttribute);
     TestObjectPythonV8Internal::deprecatedLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void enforceRangeLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->enforceRangeLongAttribute());
 }
 
 static void enforceRangeLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::enforceRangeLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void enforceRangeLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "enforceRangeLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, EnforceRange, exceptionState), exceptionState);
     imp->setEnforceRangeLongAttribute(cppValue);
 }
 
 static void enforceRangeLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::enforceRangeLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void exposeJSAccessorsLongAttributeAttributeGetter(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->exposeJSAccessorsLongAttribute());
 }
 
 static void exposeJSAccessorsLongAttributeAttributeGetterCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::exposeJSAccessorsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void exposeJSAccessorsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "exposeJSAccessorsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setExposeJSAccessorsLongAttribute(cppValue);
 }
 
 static void exposeJSAccessorsLongAttributeAttributeSetterCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     v8::Local<v8::Value> jsValue = info[0];
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::exposeJSAccessorsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void getterRaisesExceptionLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     ExceptionState exceptionState(ExceptionState::GetterContext, "getterRaisesExceptionLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     int jsValue = imp->getterRaisesExceptionLongAttribute(exceptionState);
     if (UNLIKELY(exceptionState.throwIfNeeded()))
         return;
     v8SetReturnValueInt(info, jsValue);
 }
 
 static void getterRaisesExceptionLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::getterRaisesExceptionLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void getterRaisesExceptionLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "getterRaisesExceptionLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setGetterRaisesExceptionLongAttribute(cppValue);
 }
 
 static void getterRaisesExceptionLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::getterRaisesExceptionLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void implementedAsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->implementedAsName());
 }
 
 static void implementedAsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::implementedAsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void implementedAsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "implementedAsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setImplementedAsName(cppValue);
 }
 
 static void implementedAsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::implementedAsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customImplementedAsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8TestObjectPython::customImplementedAsLongAttributeAttributeGetterCustom(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customImplementedAsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8TestObjectPython::customImplementedAsLongAttributeAttributeSetterCustom(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testInterfacePythonAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->testInterfacePythonAttribute(), imp);
 }
 
 static void testInterfacePythonAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::testInterfacePythonAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testInterfacePythonAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterfacePythonImplementation*, cppValue, V8TestInterfacePython::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfacePython::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setTestInterfacePythonAttribute(WTF::getPtr(cppValue));
 }
 
 static void testInterfacePythonAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::testInterfacePythonAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customGetterImplementedAsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8TestObjectPython::customGetterImplementedAsLongAttributeAttributeGetterCustom(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customGetterImplementedAsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "customGetterImplementedAsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setImplementedAsNameWithCustomGetter(cppValue);
 }
 
 static void customGetterImplementedAsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::customGetterImplementedAsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customSetterImplementedAsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->implementedAsNameWithCustomGetter());
 }
 
 static void customSetterImplementedAsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::customSetterImplementedAsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void customSetterImplementedAsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8TestObjectPython::customSetterImplementedAsLongAttributeAttributeSetterCustom(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void measureAsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->measureAsLongAttribute());
 }
 
 static void measureAsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     UseCounter::count(activeExecutionContext(), UseCounter::TestFeature);
     TestObjectPythonV8Internal::measureAsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void measureAsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "measureAsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setMeasureAsLongAttribute(cppValue);
 }
 
 static void measureAsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     UseCounter::count(activeExecutionContext(), UseCounter::TestFeature);
     TestObjectPythonV8Internal::measureAsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void notEnumerableLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->notEnumerableLongAttribute());
 }
 
 static void notEnumerableLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::notEnumerableLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void notEnumerableLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "notEnumerableLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setNotEnumerableLongAttribute(cppValue);
 }
 
 static void notEnumerableLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::notEnumerableLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perContextEnabledLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->perContextEnabledLongAttribute());
 }
 
 static void perContextEnabledLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::perContextEnabledLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perContextEnabledLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "perContextEnabledLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setPerContextEnabledLongAttribute(cppValue);
 }
 
 static void perContextEnabledLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::perContextEnabledLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->perWorldBindingsLongAttribute());
 }
 
 static void perWorldBindingsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::perWorldBindingsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "perWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void perWorldBindingsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::perWorldBindingsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsLongAttributeAttributeGetterForMainWorld(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->perWorldBindingsLongAttribute());
 }
 
 static void perWorldBindingsLongAttributeAttributeGetterCallbackForMainWorld(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::perWorldBindingsLongAttributeAttributeGetterForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsLongAttributeAttributeSetterForMainWorld(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "perWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void perWorldBindingsLongAttributeAttributeSetterCallbackForMainWorld(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::perWorldBindingsLongAttributeAttributeSetterForMainWorld(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsReadonlyLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->perWorldBindingsReadonlyLongAttribute());
 }
 
 static void perWorldBindingsReadonlyLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::perWorldBindingsReadonlyLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsReadonlyLongAttributeAttributeGetterForMainWorld(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->perWorldBindingsReadonlyLongAttribute());
 }
 
 static void perWorldBindingsReadonlyLongAttributeAttributeGetterCallbackForMainWorld(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::perWorldBindingsReadonlyLongAttributeAttributeGetterForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessPerWorldBindingsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingAccessPerWorldBindingsLongAttribute());
 }
 
 static void activityLoggingAccessPerWorldBindingsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger())
         contextData->activityLogger()->log("TestObjectPython.activityLoggingAccessPerWorldBindingsLongAttribute", 0, 0, "Getter");
     TestObjectPythonV8Internal::activityLoggingAccessPerWorldBindingsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessPerWorldBindingsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingAccessPerWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingAccessPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void activityLoggingAccessPerWorldBindingsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger()) {
         v8::Handle<v8::Value> loggerArg[] = { jsValue };
         contextData->activityLogger()->log("TestObjectPython.activityLoggingAccessPerWorldBindingsLongAttribute", 1, &loggerArg[0], "Setter");
     }
     TestObjectPythonV8Internal::activityLoggingAccessPerWorldBindingsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessPerWorldBindingsLongAttributeAttributeGetterForMainWorld(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingAccessPerWorldBindingsLongAttribute());
 }
 
 static void activityLoggingAccessPerWorldBindingsLongAttributeAttributeGetterCallbackForMainWorld(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger())
         contextData->activityLogger()->log("TestObjectPython.activityLoggingAccessPerWorldBindingsLongAttribute", 0, 0, "Getter");
     TestObjectPythonV8Internal::activityLoggingAccessPerWorldBindingsLongAttributeAttributeGetterForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessPerWorldBindingsLongAttributeAttributeSetterForMainWorld(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingAccessPerWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingAccessPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void activityLoggingAccessPerWorldBindingsLongAttributeAttributeSetterCallbackForMainWorld(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger()) {
         v8::Handle<v8::Value> loggerArg[] = { jsValue };
         contextData->activityLogger()->log("TestObjectPython.activityLoggingAccessPerWorldBindingsLongAttribute", 1, &loggerArg[0], "Setter");
     }
     TestObjectPythonV8Internal::activityLoggingAccessPerWorldBindingsLongAttributeAttributeSetterForMainWorld(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttribute());
 }
 
 static void activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger())
         contextData->activityLogger()->log("TestObjectPython.activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttribute", 0, 0, "Getter");
     TestObjectPythonV8Internal::activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger()) {
         v8::Handle<v8::Value> loggerArg[] = { jsValue };
         contextData->activityLogger()->log("TestObjectPython.activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttribute", 1, &loggerArg[0], "Setter");
     }
     TestObjectPythonV8Internal::activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetterForMainWorld(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttribute());
 }
 
 static void activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetterCallbackForMainWorld(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetterForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetterForMainWorld(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetterCallbackForMainWorld(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::activityLoggingAccessForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetterForMainWorld(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterPerWorldBindingsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingGetterPerWorldBindingsLongAttribute());
 }
 
 static void activityLoggingGetterPerWorldBindingsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger())
         contextData->activityLogger()->log("TestObjectPython.activityLoggingGetterPerWorldBindingsLongAttribute", 0, 0, "Getter");
     TestObjectPythonV8Internal::activityLoggingGetterPerWorldBindingsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterPerWorldBindingsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingGetterPerWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingGetterPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void activityLoggingGetterPerWorldBindingsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::activityLoggingGetterPerWorldBindingsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterPerWorldBindingsLongAttributeAttributeGetterForMainWorld(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingGetterPerWorldBindingsLongAttribute());
 }
 
 static void activityLoggingGetterPerWorldBindingsLongAttributeAttributeGetterCallbackForMainWorld(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger())
         contextData->activityLogger()->log("TestObjectPython.activityLoggingGetterPerWorldBindingsLongAttribute", 0, 0, "Getter");
     TestObjectPythonV8Internal::activityLoggingGetterPerWorldBindingsLongAttributeAttributeGetterForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterPerWorldBindingsLongAttributeAttributeSetterForMainWorld(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingGetterPerWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingGetterPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void activityLoggingGetterPerWorldBindingsLongAttributeAttributeSetterCallbackForMainWorld(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::activityLoggingGetterPerWorldBindingsLongAttributeAttributeSetterForMainWorld(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttribute());
 }
 
 static void activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger())
         contextData->activityLogger()->log("TestObjectPython.activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttribute", 0, 0, "Getter");
     TestObjectPythonV8Internal::activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetterForMainWorld(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttribute());
 }
 
 static void activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetterCallbackForMainWorld(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeGetterForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetterForMainWorld(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setActivityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttribute(cppValue);
 }
 
 static void activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetterCallbackForMainWorld(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::activityLoggingGetterForIsolatedWorldsPerWorldBindingsLongAttributeAttributeSetterForMainWorld(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void raisesExceptionLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     ExceptionState exceptionState(ExceptionState::GetterContext, "raisesExceptionLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     int jsValue = imp->raisesExceptionLongAttribute(exceptionState);
     if (UNLIKELY(exceptionState.throwIfNeeded()))
         return;
     v8SetReturnValueInt(info, jsValue);
 }
 
 static void raisesExceptionLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::raisesExceptionLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void raisesExceptionLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "raisesExceptionLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setRaisesExceptionLongAttribute(cppValue, exceptionState);
     exceptionState.throwIfNeeded();
 }
 
 static void raisesExceptionLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::raisesExceptionLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectTestInterfaceAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->fastGetAttribute(HTMLNames::reflecttestinterfaceattributeAttr), imp);
 }
 
 static void reflectTestInterfaceAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::reflectTestInterfaceAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectTestInterfaceAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterface*, cppValue, V8TestInterface::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterface::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::reflecttestinterfaceattributeAttr, WTF::getPtr(cppValue));
 }
 
 static void reflectTestInterfaceAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::reflectTestInterfaceAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectReflectedNameAttributeTestAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->fastGetAttribute(HTMLNames::reflectedNameAttributeAttr), imp);
 }
 
 static void reflectReflectedNameAttributeTestAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::reflectReflectedNameAttributeTestAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectReflectedNameAttributeTestAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterface*, cppValue, V8TestInterface::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterface::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::reflectedNameAttributeAttr, WTF::getPtr(cppValue));
 }
 
 static void reflectReflectedNameAttributeTestAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::reflectReflectedNameAttributeTestAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectBooleanAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueBool(info, imp->fastHasAttribute(HTMLNames::reflectbooleanattributeAttr));
 }
 
 static void reflectBooleanAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::reflectBooleanAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectBooleanAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(bool, cppValue, jsValue->BooleanValue());
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setBooleanAttribute(HTMLNames::reflectbooleanattributeAttr, cppValue);
 }
 
 static void reflectBooleanAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::reflectBooleanAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->getIntegralAttribute(HTMLNames::reflectlongattributeAttr));
 }
 
 static void reflectLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::reflectLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "reflectLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setIntegralAttribute(HTMLNames::reflectlongattributeAttr, cppValue);
 }
 
 static void reflectLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::reflectLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectUnsignedShortAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueUnsigned(info, std::max(0, imp->fastGetAttribute(HTMLNames::reflectunsignedshortattributeAttr)));
 }
 
 static void reflectUnsignedShortAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::reflectUnsignedShortAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectUnsignedShortAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "reflectUnsignedShortAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned, cppValue, toUInt16(jsValue, exceptionState), exceptionState);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::reflectunsignedshortattributeAttr, cppValue);
 }
 
 static void reflectUnsignedShortAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::reflectUnsignedShortAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectUnsignedLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueUnsigned(info, std::max(0, imp->getIntegralAttribute(HTMLNames::reflectunsignedlongattributeAttr)));
 }
 
 static void reflectUnsignedLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::reflectUnsignedLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectUnsignedLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "reflectUnsignedLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned, cppValue, toUInt32(jsValue, exceptionState), exceptionState);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setUnsignedIntegralAttribute(HTMLNames::reflectunsignedlongattributeAttr, cppValue);
 }
 
 static void reflectUnsignedLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::reflectUnsignedLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void idAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->getIdAttribute(), info.GetIsolate());
 }
 
 static void idAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::idAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void idAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::idAttr, cppValue);
 }
 
 static void idAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::idAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nameAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->getNameAttribute(), info.GetIsolate());
 }
 
 static void nameAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::nameAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nameAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::nameAttr, cppValue);
 }
 
 static void nameAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::nameAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void classAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->getClassAttribute(), info.GetIsolate());
 }
 
 static void classAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::classAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void classAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::classAttr, cppValue);
 }
 
 static void classAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::classAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectedIdAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->getIdAttribute(), info.GetIsolate());
 }
 
 static void reflectedIdAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::reflectedIdAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectedIdAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::idAttr, cppValue);
 }
 
 static void reflectedIdAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::reflectedIdAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectedNameAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->getNameAttribute(), info.GetIsolate());
 }
 
 static void reflectedNameAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::reflectedNameAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectedNameAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::nameAttr, cppValue);
 }
 
 static void reflectedNameAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::reflectedNameAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectedClassAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->getClassAttribute(), info.GetIsolate());
 }
 
 static void reflectedClassAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::reflectedClassAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void reflectedClassAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::classAttr, cppValue);
 }
 
 static void reflectedClassAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::reflectedClassAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void replaceableReadonlyLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->replaceableReadonlyLongAttribute());
 }
 
 static void replaceableReadonlyLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::replaceableReadonlyLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void runtimeEnabledLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->runtimeEnabledLongAttribute());
 }
 
 static void runtimeEnabledLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::runtimeEnabledLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void runtimeEnabledLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "runtimeEnabledLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setRuntimeEnabledLongAttribute(cppValue);
 }
 
 static void runtimeEnabledLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::runtimeEnabledLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 #if ENABLE(CONDITION)
 static void conditionalRuntimeEnabledLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->conditionalRuntimeEnabledLongAttribute());
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION)
 static void conditionalRuntimeEnabledLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::conditionalRuntimeEnabledLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION)
 static void conditionalRuntimeEnabledLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "conditionalRuntimeEnabledLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setConditionalRuntimeEnabledLongAttribute(cppValue);
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION)
 static void conditionalRuntimeEnabledLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::conditionalRuntimeEnabledLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION)
 
 static void setterCallWithActiveWindowAndFirstWindowStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->setterCallWithActiveWindowAndFirstWindowStringAttribute(), info.GetIsolate());
 }
 
 static void setterCallWithActiveWindowAndFirstWindowStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::setterCallWithActiveWindowAndFirstWindowStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void setterCallWithActiveWindowAndFirstWindowStringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     imp->setSetterCallWithActiveWindowAndFirstWindowStringAttribute(activeDOMWindow(), firstDOMWindow(), cppValue);
 }
 
 static void setterCallWithActiveWindowAndFirstWindowStringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::setterCallWithActiveWindowAndFirstWindowStringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void setterRaisesExceptionLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->setterRaisesExceptionLongAttribute());
 }
 
 static void setterRaisesExceptionLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::setterRaisesExceptionLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void setterRaisesExceptionLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "setterRaisesExceptionLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setSetterRaisesExceptionLongAttribute(cppValue, exceptionState);
     exceptionState.throwIfNeeded();
 }
 
 static void setterRaisesExceptionLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::setterRaisesExceptionLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void strictTypeCheckingFloatAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->strictTypeCheckingFloatAttribute());
 }
 
 static void strictTypeCheckingFloatAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::strictTypeCheckingFloatAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void strictTypeCheckingFloatAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(float, cppValue, static_cast<float>(jsValue->NumberValue()));
     imp->setStrictTypeCheckingFloatAttribute(cppValue);
 }
 
 static void strictTypeCheckingFloatAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::strictTypeCheckingFloatAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void strictTypeCheckingTestInterfaceAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueFast(info, imp->strictTypeCheckingTestInterfaceAttribute(), imp);
 }
 
 static void strictTypeCheckingTestInterfaceAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::strictTypeCheckingTestInterfaceAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void strictTypeCheckingTestInterfaceAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "strictTypeCheckingTestInterfaceAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (!isUndefinedOrNull(jsValue) && !V8TestInterface::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate()))) {
         exceptionState.throwTypeError("The provided value is not of type 'TestInterface'.");
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterface*, cppValue, V8TestInterface::hasInstance(jsValue, info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterface::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
     imp->setStrictTypeCheckingTestInterfaceAttribute(WTF::getPtr(cppValue));
 }
 
 static void strictTypeCheckingTestInterfaceAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::strictTypeCheckingTestInterfaceAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void treatNullAsNullStringStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->treatNullAsNullStringStringAttribute(), info.GetIsolate());
 }
 
 static void treatNullAsNullStringStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::treatNullAsNullStringStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void treatNullAsNullStringStringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<WithNullCheck>, cppValue, jsValue);
     imp->setTreatNullAsNullStringStringAttribute(cppValue);
 }
 
 static void treatNullAsNullStringStringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::treatNullAsNullStringStringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void treatReturnedNullStringAsNullStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueStringOrNull(info, imp->treatReturnedNullStringAsNullStringAttribute(), info.GetIsolate());
 }
 
 static void treatReturnedNullStringAsNullStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::treatReturnedNullStringAsNullStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void treatReturnedNullStringAsNullStringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     imp->setTreatReturnedNullStringAsNullStringAttribute(cppValue);
 }
 
 static void treatReturnedNullStringAsNullStringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::treatReturnedNullStringAsNullStringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void treatReturnedNullStringAsUndefinedStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueStringOrUndefined(info, imp->treatReturnedNullStringAsUndefinedStringAttribute(), info.GetIsolate());
 }
 
 static void treatReturnedNullStringAsUndefinedStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::treatReturnedNullStringAsUndefinedStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void treatReturnedNullStringAsUndefinedStringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     imp->setTreatReturnedNullStringAsUndefinedStringAttribute(cppValue);
 }
 
 static void treatReturnedNullStringAsUndefinedStringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::treatReturnedNullStringAsUndefinedStringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void urlStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->getURLAttribute(HTMLNames::urlstringattributeAttr), info.GetIsolate());
 }
 
 static void urlStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::urlStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void urlStringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::urlstringattributeAttr, cppValue);
 }
 
 static void urlStringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::urlStringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void urlStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->getURLAttribute(HTMLNames::ReflectUrlAttributeAttr), info.GetIsolate());
 }
 
 static void urlStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::urlStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void urlStringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::ReflectUrlAttributeAttr, cppValue);
 }
 
 static void urlStringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::urlStringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unforgeableLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::Object> holder = info.This()->FindInstanceInPrototypeChain(V8TestObjectPython::domTemplate(info.GetIsolate(), worldType(info.GetIsolate())));
     if (holder.IsEmpty())
         return;
     TestObjectPython* imp = V8TestObjectPython::toNative(holder);
     v8SetReturnValueInt(info, imp->unforgeableLongAttribute());
 }
 
 static void unforgeableLongAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::unforgeableLongAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unforgeableLongAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "unforgeableLongAttribute", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, cppValue, toInt32(jsValue, exceptionState), exceptionState);
     imp->setUnforgeableLongAttribute(cppValue);
 }
 
 static void unforgeableLongAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestObjectPythonV8Internal::unforgeableLongAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void anotherStringAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->fastGetAttribute(HTMLNames::ReflectUrlAttributeAsAStringAttr), info.GetIsolate());
 }
 
 static void anotherStringAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMGetter");
     TestObjectPythonV8Internal::anotherStringAttributeAttributeGetter(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void anotherStringAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, cppValue, jsValue);
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->setAttribute(HTMLNames::ReflectUrlAttributeAsAStringAttr, cppValue);
 }
 
 static void anotherStringAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     TestObjectPythonV8Internal::anotherStringAttributeAttributeSetter(jsValue, info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void TestObjectPythonConstructorGetter(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::Value> data = info.Data();
     ASSERT(data->IsExternal());
     V8PerContextData* perContextData = V8PerContextData::from(info.Holder()->CreationContext());
     if (!perContextData)
         return;
     v8SetReturnValue(info, perContextData->constructorForType(WrapperTypeInfo::unwrap(data)));
@@ skipping 12 matching lines @@
 static void voidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->voidMethod();
 }
 
 static void voidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void staticVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython::staticVoidMethod();
 }
 
 static void staticVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::staticVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void dateMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8DateOrNull(imp->dateMethod(), info.GetIsolate()));
 }
 
 static void dateMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::dateMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void stringMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->stringMethod(), info.GetIsolate());
 }
 
 static void stringMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::stringMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void readonlyDOMTimeStampMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, static_cast<double>(imp->readonlyDOMTimeStampMethod()));
 }
 
 static void readonlyDOMTimeStampMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::readonlyDOMTimeStampMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void booleanMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueBool(info, imp->booleanMethod());
 }
 
 static void booleanMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::booleanMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void byteMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->byteMethod());
 }
 
 static void byteMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::byteMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void doubleMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->doubleMethod());
 }
 
 static void doubleMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::doubleMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void floatMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->floatMethod());
 }
 
 static void floatMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::floatMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void longMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->longMethod());
 }
 
 static void longMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::longMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void longLongMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, static_cast<double>(imp->longLongMethod()));
 }
 
 static void longLongMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::longLongMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void octetMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueUnsigned(info, imp->octetMethod());
 }
 
 static void octetMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::octetMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void shortMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueInt(info, imp->shortMethod());
 }
 
 static void shortMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::shortMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unsignedLongMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueUnsigned(info, imp->unsignedLongMethod());
 }
 
 static void unsignedLongMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::unsignedLongMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unsignedLongLongMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, static_cast<double>(imp->unsignedLongLongMethod()));
 }
 
 static void unsignedLongLongMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::unsignedLongLongMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unsignedShortMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueUnsigned(info, imp->unsignedShortMethod());
 }
 
 static void unsignedShortMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::unsignedShortMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodDateArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodDateArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(double, dateArg, toWebCoreDate(info[0]));
     imp->voidMethodDateArg(dateArg);
 }
 
 static void voidMethodDateArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodDateArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodStringArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, stringArg, info[0]);
     imp->voidMethodStringArg(stringArg);
 }
 
 static void voidMethodStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodBooleanArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodBooleanArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(bool, booleanArg, info[0]->BooleanValue());
     imp->voidMethodBooleanArg(booleanArg);
 }
 
 static void voidMethodBooleanArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodBooleanArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodByteArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodByteArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, byteArg, toInt8(info[0], exceptionState), exceptionState);
     imp->voidMethodByteArg(byteArg);
 }
 
 static void voidMethodByteArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodByteArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodDoubleArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodDoubleArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(double, doubleArg, static_cast<double>(info[0]->NumberValue()));
     imp->voidMethodDoubleArg(doubleArg);
 }
 
 static void voidMethodDoubleArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodDoubleArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodFloatArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodFloatArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(float, floatArg, static_cast<float>(info[0]->NumberValue()));
     imp->voidMethodFloatArg(floatArg);
 }
 
 static void voidMethodFloatArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodFloatArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, longArg, toInt32(info[0], exceptionState), exceptionState);
     imp->voidMethodLongArg(longArg);
 }
 
 static void voidMethodLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodLongLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodLongLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(long long, longLongArg, toInt64(info[0], exceptionState), exceptionState);
     imp->voidMethodLongLongArg(longLongArg);
 }
 
 static void voidMethodLongLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodLongLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodOctetArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodOctetArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned, octetArg, toUInt8(info[0], exceptionState), exceptionState);
     imp->voidMethodOctetArg(octetArg);
 }
 
 static void voidMethodOctetArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodOctetArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodShortArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodShortArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, shortArg, toInt16(info[0], exceptionState), exceptionState);
     imp->voidMethodShortArg(shortArg);
 }
 
 static void voidMethodShortArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodShortArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodUnsignedLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodUnsignedLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned, unsignedLongArg, toUInt32(info[0], exceptionState), exceptionState);
     imp->voidMethodUnsignedLongArg(unsignedLongArg);
 }
 
 static void voidMethodUnsignedLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodUnsignedLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodUnsignedLongLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodUnsignedLongLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned long long, unsignedLongLongArg, toUInt64(info[0], exceptionState), exceptionState);
     imp->voidMethodUnsignedLongLongArg(unsignedLongLongArg);
 }
 
 static void voidMethodUnsignedLongLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodUnsignedLongLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodUnsignedShortArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodUnsignedShortArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(unsigned, unsignedShortArg, toUInt16(info[0], exceptionState), exceptionState);
     imp->voidMethodUnsignedShortArg(unsignedShortArg);
 }
 
 static void voidMethodUnsignedShortArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodUnsignedShortArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testInterfaceEmptyMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->testInterfaceEmptyMethod());
 }
 
 static void testInterfaceEmptyMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::testInterfaceEmptyMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTestInterfaceEmptyArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->voidMethodTestInterfaceEmptyArg(testInterfaceEmptyArg);
 }
 
 static void voidMethodTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodLongArgTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodLongArgTestInterfaceEmptyArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 2)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(2, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, longArg, toInt32(info[0], exceptionState), exceptionState);
     V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[1], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[1])) : 0);
     imp->voidMethodLongArgTestInterfaceEmptyArg(longArg, testInterfaceEmptyArg);
 }
 
 static void voidMethodLongArgTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodLongArgTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidCallbackFunctionMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->voidCallbackFunctionMethod().v8Value());
 }
 
 static void voidCallbackFunctionMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidCallbackFunctionMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void anyCallbackFunctionOptionalAnyArgMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->anyCallbackFunctionOptionalAnyArgMethod().v8Value());
 }
 
 static void anyCallbackFunctionOptionalAnyArgMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::anyCallbackFunctionOptionalAnyArgMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodVoidCallbackFunctionArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodVoidCallbackFunctionArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptValue, voidCallbackFunctionArg, ScriptValue(info[0], info.GetIsolate()));
     imp->voidMethodVoidCallbackFunctionArg(voidCallbackFunctionArg);
 }
 
 static void voidMethodVoidCallbackFunctionArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodVoidCallbackFunctionArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodAnyCallbackFunctionOptionalAnyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodAnyCallbackFunctionOptionalAnyArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptValue, anyCallbackFunctionOptionalAnyArgArg, ScriptValue(info[0], info.GetIsolate()));
     imp->voidMethodAnyCallbackFunctionOptionalAnyArg(anyCallbackFunctionOptionalAnyArgArg);
 }
 
 static void voidMethodAnyCallbackFunctionOptionalAnyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodAnyCallbackFunctionOptionalAnyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void compareHowMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->compareHowMethod());
 }
 
 static void compareHowMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::compareHowMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void anyMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->anyMethod().v8Value());
 }
 
 static void anyMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::anyMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodMediaQueryListListenerArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodMediaQueryListListenerArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(RefPtr<MediaQueryListListener>, mediaQueryListListenerArg, MediaQueryListListener::create(ScriptValue(info[0], info.GetIsolate())));
     imp->voidMethodMediaQueryListListenerArg(mediaQueryListListenerArg);
 }
 
 static void voidMethodMediaQueryListListenerArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodMediaQueryListListenerArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodCompareHowArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodCompareHowArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Range::CompareHow, compareHowArg, static_cast<Range::CompareHow>(info[0]->Int32Value()));
     imp->voidMethodCompareHowArg(compareHowArg);
 }
 
 static void voidMethodCompareHowArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodCompareHowArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodAnyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodAnyArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptValue, anyArg, ScriptValue(info[0], info.GetIsolate()));
     imp->voidMethodAnyArg(anyArg);
 }
 
 static void voidMethodAnyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodAnyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodAttrArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodAttrArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Attr*, attrArg, V8Attr::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8Attr::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->voidMethodAttrArg(attrArg);
 }
 
 static void voidMethodAttrArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodAttrArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodDocumentArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodDocumentArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Document*, documentArg, V8Document::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8Document::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->voidMethodDocumentArg(documentArg);
 }
 
 static void voidMethodDocumentArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodDocumentArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodDocumentTypeArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodDocumentTypeArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(DocumentType*, documentTypeArg, V8DocumentType::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8DocumentType::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->voidMethodDocumentTypeArg(documentTypeArg);
 }
 
 static void voidMethodDocumentTypeArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodDocumentTypeArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodElementArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodElementArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Element*, elementArg, V8Element::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8Element::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->voidMethodElementArg(elementArg);
 }
 
 static void voidMethodElementArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodElementArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodNodeArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodNodeArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Node*, nodeArg, V8Node::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->voidMethodNodeArg(nodeArg);
 }
 
 static void voidMethodNodeArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodNodeArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void arrayBufferMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->arrayBufferMethod());
 }
 
 static void arrayBufferMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::arrayBufferMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void arrayBufferViewMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->arrayBufferViewMethod());
 }
 
 static void arrayBufferViewMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::arrayBufferViewMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void float32ArrayMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->float32ArrayMethod());
 }
 
 static void float32ArrayMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::float32ArrayMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void int32ArrayMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->int32ArrayMethod());
 }
 
 static void int32ArrayMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::int32ArrayMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void uint8ArrayMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->uint8ArrayMethod());
 }
 
 static void uint8ArrayMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::uint8ArrayMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodArrayBufferArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodArrayBufferArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ArrayBuffer*, arrayBufferArg, info[0]->IsArrayBuffer() ? V8ArrayBuffer::toNative(v8::Handle<v8::ArrayBuffer>::Cast(info[0])) : 0);
     imp->voidMethodArrayBufferArg(arrayBufferArg);
 }
 
 static void voidMethodArrayBufferArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodArrayBufferArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodArrayBufferViewArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodArrayBufferViewArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ArrayBufferView*, arrayBufferViewArg, info[0]->IsArrayBufferView() ? V8ArrayBufferView::toNative(v8::Handle<v8::ArrayBufferView>::Cast(info[0])) : 0);
     imp->voidMethodArrayBufferViewArg(arrayBufferViewArg);
 }
 
 static void voidMethodArrayBufferViewArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodArrayBufferViewArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodFloat32ArrayArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodFloat32ArrayArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Float32Array*, float32ArrayArg, info[0]->IsFloat32Array() ? V8Float32Array::toNative(v8::Handle<v8::Float32Array>::Cast(info[0])) : 0);
     imp->voidMethodFloat32ArrayArg(float32ArrayArg);
 }
 
 static void voidMethodFloat32ArrayArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodFloat32ArrayArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodInt32ArrayArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodInt32ArrayArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Int32Array*, int32ArrayArg, info[0]->IsInt32Array() ? V8Int32Array::toNative(v8::Handle<v8::Int32Array>::Cast(info[0])) : 0);
     imp->voidMethodInt32ArrayArg(int32ArrayArg);
 }
 
 static void voidMethodInt32ArrayArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodInt32ArrayArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodUint8ArrayArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodUint8ArrayArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Uint8Array*, uint8ArrayArg, info[0]->IsUint8Array() ? V8Uint8Array::toNative(v8::Handle<v8::Uint8Array>::Cast(info[0])) : 0);
     imp->voidMethodUint8ArrayArg(uint8ArrayArg);
 }
 
 static void voidMethodUint8ArrayArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodUint8ArrayArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void longArrayMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8Array(imp->longArrayMethod(), info.GetIsolate()));
 }
 
 static void longArrayMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::longArrayMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void stringArrayMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8Array(imp->stringArrayMethod(), info.GetIsolate()));
 }
 
 static void stringArrayMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::stringArrayMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testInterfaceEmptyArrayMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8Array(imp->testInterfaceEmptyArrayMethod(), info.GetIsolate()));
 }
 
 static void testInterfaceEmptyArrayMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::testInterfaceEmptyArrayMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodArrayLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodArrayLongArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<int>, arrayLongArg, toNativeArray<int>(info[0], 1, info.GetIsolate()));
     imp->voidMethodArrayLongArg(arrayLongArg);
 }
 
 static void voidMethodArrayLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodArrayLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodArrayStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodArrayStringArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<String>, arrayStringArg, toNativeArray<String>(info[0], 1, info.GetIsolate()));
     imp->voidMethodArrayStringArg(arrayStringArg);
 }
 
 static void voidMethodArrayStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodArrayStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodArrayTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodArrayTestInterfaceEmptyArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<RefPtr<TestInterfaceEmpty> >, arrayTestInterfaceEmptyArg, (toRefPtrNativeArray<TestInterfaceEmpty, V8TestInterfaceEmpty>(info[0], 1, info.GetIsolate())));
     imp->voidMethodArrayTestInterfaceEmptyArg(arrayTestInterfaceEmptyArg);
 }
 
 static void voidMethodArrayTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodArrayTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void sequenceLongMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8Array(imp->sequenceLongMethod(), info.GetIsolate()));
 }
 
 static void sequenceLongMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::sequenceLongMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void sequenceStringMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8Array(imp->sequenceStringMethod(), info.GetIsolate()));
 }
 
 static void sequenceStringMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::sequenceStringMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void sequenceTestInterfaceEmptyMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, v8Array(imp->sequenceTestInterfaceEmptyMethod(), info.GetIsolate()));
 }
 
 static void sequenceTestInterfaceEmptyMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::sequenceTestInterfaceEmptyMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodSequenceLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodSequenceLongArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<int>, sequenceLongArg, toNativeArray<int>(info[0], 1, info.GetIsolate()));
     imp->voidMethodSequenceLongArg(sequenceLongArg);
 }
 
 static void voidMethodSequenceLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodSequenceLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodSequenceStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodSequenceStringArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<String>, sequenceStringArg, toNativeArray<String>(info[0], 1, info.GetIsolate()));
     imp->voidMethodSequenceStringArg(sequenceStringArg);
 }
 
 static void voidMethodSequenceStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodSequenceStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodSequenceTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodSequenceTestInterfaceEmptyArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<RefPtr<TestInterfaceEmpty> >, sequenceTestInterfaceEmptyArg, (toRefPtrNativeArray<TestInterfaceEmpty, V8TestInterfaceEmpty>(info[0], 1, info.GetIsolate())));
     imp->voidMethodSequenceTestInterfaceEmptyArg(sequenceTestInterfaceEmptyArg);
 }
 
 static void voidMethodSequenceTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodSequenceTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodNullableStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodNullableStringArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterfaceEmpty*, nullableTestInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->voidMethodNullableStringArg(nullableTestInterfaceEmptyArg);
 }
 
 static void voidMethodNullableStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodNullableStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodTestCallbackInterfaceArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTestCallbackInterfaceArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (info.Length() <= 0 || !info[0]->IsFunction()) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTestCallbackInterfaceArg", "TestObjectPython", "The callback provided as parameter 1 is not a function."), info.GetIsolate());
         return;
     }
     OwnPtr<TestCallbackInterface> testCallbackInterfaceArg = V8TestCallbackInterface::create(v8::Handle<v8::Function>::Cast(info[0]), getExecutionContext());
     imp->voidMethodTestCallbackInterfaceArg(testCallbackInterfaceArg.release());
 }
 
 static void voidMethodTestCallbackInterfaceArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodTestCallbackInterfaceArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodOptionalTestCallbackInterfaceArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     OwnPtr<TestCallbackInterface> optionalTestCallbackInterfaceArg;
     if (info.Length() > 0 && !isUndefinedOrNull(info[0])) {
         if (!info[0]->IsFunction()) {
             throwTypeError(ExceptionMessages::failedToExecute("voidMethodOptionalTestCallbackInterfaceArg", "TestObjectPython", "The callback provided as parameter 1 is not a function."), info.GetIsolate());
             return;
         }
         optionalTestCallbackInterfaceArg = V8TestCallbackInterface::create(v8::Handle<v8::Function>::Cast(info[0]), getExecutionContext());
     }
     imp->voidMethodOptionalTestCallbackInterfaceArg(optionalTestCallbackInterfaceArg.release());
 }
 
 static void voidMethodOptionalTestCallbackInterfaceArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodOptionalTestCallbackInterfaceArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodNullableTestCallbackInterfaceArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodNullableTestCallbackInterfaceArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (info.Length() <= 0 || !(info[0]->IsFunction() || info[0]->IsNull())) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodNullableTestCallbackInterfaceArg", "TestObjectPython", "The callback provided as parameter 1 is not a function."), info.GetIsolate());
         return;
     }
     OwnPtr<TestCallbackInterface> testCallbackInterfaceArg = info[0]->IsNull() ? nullptr : V8TestCallbackInterface::create(v8::Handle<v8::Function>::Cast(info[0]), getExecutionContext());
     imp->voidMethodNullableTestCallbackInterfaceArg(testCallbackInterfaceArg.release());
 }
 
 static void voidMethodNullableTestCallbackInterfaceArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodNullableTestCallbackInterfaceArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testEnumMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueString(info, imp->testEnumMethod(), info.GetIsolate());
 }
 
 static void testEnumMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::testEnumMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodTestEnumArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTestEnumArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, testEnumTypeArg, info[0]);
     String string = testEnumTypeArg;
     if (!(string == "" || string == "EnumValue1" || string == "EnumValue2" || string == "EnumValue3")) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTestEnumArg", "TestObjectPython", "parameter 1 ('" + string + "') is not a valid enum value."), info.GetIsolate());
         return;
     }
     imp->voidMethodTestEnumArg(testEnumTypeArg);
 }
 
 static void voidMethodTestEnumArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodTestEnumArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void dictionaryMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->dictionaryMethod());
 }
 
 static void dictionaryMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::dictionaryMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void nodeFilterMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->nodeFilterMethod());
 }
 
 static void nodeFilterMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::nodeFilterMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void promiseMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->promiseMethod().v8Value());
 }
 
 static void promiseMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::promiseMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void serializedScriptValueMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->serializedScriptValueMethod() ? imp->serializedScriptValueMethod()->deserialize() : v8::Handle<v8::Value>(v8::Null(info.GetIsolate())));
 }
 
 static void serializedScriptValueMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::serializedScriptValueMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void xPathNSResolverMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValue(info, imp->xPathNSResolverMethod());
 }
 
 static void xPathNSResolverMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::xPathNSResolverMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodDictionaryArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodDictionaryArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Dictionary, dictionaryArg, Dictionary(info[0], info.GetIsolate()));
     if (!dictionaryArg.isUndefinedOrNull() && !dictionaryArg.isObject()) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodDictionaryArg", "TestObjectPython", "parameter 1 ('dictionaryArg') is not an object."), info.GetIsolate());
         return;
     }
     imp->voidMethodDictionaryArg(dictionaryArg);
 }
 
 static void voidMethodDictionaryArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodDictionaryArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodNodeFilterArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodNodeFilterArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(RefPtr<NodeFilter>, nodeFilterArg, toNodeFilter(info[0], info.GetIsolate()));
     imp->voidMethodNodeFilterArg(nodeFilterArg.release());
 }
 
 static void voidMethodNodeFilterArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodNodeFilterArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodPromiseArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodPromiseArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(ScriptPromise, promiseArg, ScriptPromise(info[0]));
     if (!promiseArg.isUndefinedOrNull() && !promiseArg.isObject()) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodPromiseArg", "TestObjectPython", "parameter 1 ('promiseArg') is not an object."), info.GetIsolate());
         return;
     }
     imp->voidMethodPromiseArg(promiseArg);
 }
 
 static void voidMethodPromiseArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodPromiseArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodSerializedScriptValueArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodSerializedScriptValueArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     RefPtr<SerializedScriptValue> serializedScriptValueArg = SerializedScriptValue::create(info[0], 0, 0, exceptionState, info.GetIsolate());
     if (exceptionState.throwIfNeeded())
         return;
     imp->voidMethodSerializedScriptValueArg(serializedScriptValueArg);
 }
 
 static void voidMethodSerializedScriptValueArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodSerializedScriptValueArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodXPathNSResolverArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodXPathNSResolverArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(RefPtr<XPathNSResolver>, xPathNSResolverArg, toXPathNSResolver(info[0], info.GetIsolate()));
     imp->voidMethodXPathNSResolverArg(xPathNSResolverArg.release());
 }
 
 static void voidMethodXPathNSResolverArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodXPathNSResolverArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodSequenceDictionaryArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodSequenceDictionaryArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<Dictionary>, sequenceDictionaryArg, toNativeArray<Dictionary>(info[0], 1, info.GetIsolate()));
     imp->voidMethodSequenceDictionaryArg(sequenceDictionaryArg);
 }
 
 static void voidMethodSequenceDictionaryArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodSequenceDictionaryArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodStringArgLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodStringArgLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 2)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(2, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, stringArg, info[0]);
     V8TRYCATCH_EXCEPTION_VOID(int, longArg, toInt32(info[1], exceptionState), exceptionState);
     imp->voidMethodStringArgLongArg(stringArg, longArg);
 }
 
 static void voidMethodStringArgLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodStringArgLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodOptionalStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (UNLIKELY(info.Length() <= 0)) {
         imp->voidMethodOptionalStringArg();
         return;
     }
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, optionalStringArg, info[0]);
     imp->voidMethodOptionalStringArg(optionalStringArg);
 }
 
 static void voidMethodOptionalStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodOptionalStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodOptionalTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (UNLIKELY(info.Length() <= 0)) {
         imp->voidMethodOptionalTestInterfaceEmptyArg();
         return;
     }
     V8TRYCATCH_VOID(TestInterfaceEmpty*, optionalTestInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->voidMethodOptionalTestInterfaceEmptyArg(optionalTestInterfaceEmptyArg);
 }
 
 static void voidMethodOptionalTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodOptionalTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodOptionalLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodOptionalLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (UNLIKELY(info.Length() <= 0)) {
         imp->voidMethodOptionalLongArg();
         return;
     }
     V8TRYCATCH_EXCEPTION_VOID(int, optionalLongArg, toInt32(info[0], exceptionState), exceptionState);
     imp->voidMethodOptionalLongArg(optionalLongArg);
 }
 
 static void voidMethodOptionalLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodOptionalLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void stringMethodOptionalLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "stringMethodOptionalLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (UNLIKELY(info.Length() <= 0)) {
         v8SetReturnValueString(info, imp->stringMethodOptionalLongArg(), info.GetIsolate());
         return;
     }
     V8TRYCATCH_EXCEPTION_VOID(int, optionalLongArg, toInt32(info[0], exceptionState), exceptionState);
     v8SetReturnValueString(info, imp->stringMethodOptionalLongArg(optionalLongArg), info.GetIsolate());
 }
 
 static void stringMethodOptionalLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::stringMethodOptionalLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void testInterfaceEmptyMethodOptionalLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "testInterfaceEmptyMethodOptionalLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (UNLIKELY(info.Length() <= 0)) {
         v8SetReturnValue(info, imp->testInterfaceEmptyMethodOptionalLongArg());
         return;
     }
     V8TRYCATCH_EXCEPTION_VOID(int, optionalLongArg, toInt32(info[0], exceptionState), exceptionState);
     v8SetReturnValue(info, imp->testInterfaceEmptyMethodOptionalLongArg(optionalLongArg));
 }
 
 static void testInterfaceEmptyMethodOptionalLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::testInterfaceEmptyMethodOptionalLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void longMethodOptionalLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "longMethodOptionalLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (UNLIKELY(info.Length() <= 0)) {
         v8SetReturnValueInt(info, imp->longMethodOptionalLongArg());
         return;
     }
     V8TRYCATCH_EXCEPTION_VOID(int, optionalLongArg, toInt32(info[0], exceptionState), exceptionState);
     v8SetReturnValueInt(info, imp->longMethodOptionalLongArg(optionalLongArg));
 }
 
 static void longMethodOptionalLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::longMethodOptionalLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodLongArgOptionalLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodLongArgOptionalLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, longArg, toInt32(info[0], exceptionState), exceptionState);
     if (UNLIKELY(info.Length() <= 1)) {
         imp->voidMethodLongArgOptionalLongArg(longArg);
         return;
     }
     V8TRYCATCH_EXCEPTION_VOID(int, optionalLongArg, toInt32(info[1], exceptionState), exceptionState);
     imp->voidMethodLongArgOptionalLongArg(longArg, optionalLongArg);
 }
 
 static void voidMethodLongArgOptionalLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodLongArgOptionalLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodLongArgOptionalLongArgOptionalLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodLongArgOptionalLongArgOptionalLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, longArg, toInt32(info[0], exceptionState), exceptionState);
     if (UNLIKELY(info.Length() <= 1)) {
         imp->voidMethodLongArgOptionalLongArgOptionalLongArg(longArg);
         return;
     }
     V8TRYCATCH_EXCEPTION_VOID(int, optionalLongArg1, toInt32(info[1], exceptionState), exceptionState);
     if (UNLIKELY(info.Length() <= 2)) {
         imp->voidMethodLongArgOptionalLongArgOptionalLongArg(longArg, optionalLongArg1);
         return;
     }
     V8TRYCATCH_EXCEPTION_VOID(int, optionalLongArg2, toInt32(info[2], exceptionState), exceptionState);
     imp->voidMethodLongArgOptionalLongArgOptionalLongArg(longArg, optionalLongArg1, optionalLongArg2);
 }
 
 static void voidMethodLongArgOptionalLongArgOptionalLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodLongArgOptionalLongArgOptionalLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodLongArgOptionalTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodLongArgOptionalTestInterfaceEmptyArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, longArg, toInt32(info[0], exceptionState), exceptionState);
     if (UNLIKELY(info.Length() <= 1)) {
         imp->voidMethodLongArgOptionalTestInterfaceEmptyArg(longArg);
         return;
     }
     V8TRYCATCH_VOID(TestInterfaceEmpty*, optionalTestInterfaceEmpty, V8TestInterfaceEmpty::hasInstance(info[1], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[1])) : 0);
     imp->voidMethodLongArgOptionalTestInterfaceEmptyArg(longArg, optionalTestInterfaceEmpty);
 }
 
 static void voidMethodLongArgOptionalTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodLongArgOptionalTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodTestInterfaceEmptyArgOptionalLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodTestInterfaceEmptyArgOptionalLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterfaceEmpty*, optionalTestInterfaceEmpty, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     if (UNLIKELY(info.Length() <= 1)) {
         imp->voidMethodTestInterfaceEmptyArgOptionalLongArg(optionalTestInterfaceEmpty);
         return;
     }
     V8TRYCATCH_EXCEPTION_VOID(int, longArg, toInt32(info[1], exceptionState), exceptionState);
     imp->voidMethodTestInterfaceEmptyArgOptionalLongArg(optionalTestInterfaceEmpty, longArg);
 }
 
 static void voidMethodTestInterfaceEmptyArgOptionalLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodTestInterfaceEmptyArgOptionalLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodOptionalDictionaryArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Dictionary, optionalDictionaryArg, Dictionary(info[0], info.GetIsolate()));
     if (!optionalDictionaryArg.isUndefinedOrNull() && !optionalDictionaryArg.isObject()) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodOptionalDictionaryArg", "TestObjectPython", "parameter 1 ('optionalDictionaryArg') is not an object."), info.GetIsolate());
         return;
     }
     imp->voidMethodOptionalDictionaryArg(optionalDictionaryArg);
 }
 
 static void voidMethodOptionalDictionaryArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodOptionalDictionaryArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodVariadicStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(Vector<String>, variadicStringArgs, toNativeArguments<String>(info, 0));
     imp->voidMethodVariadicStringArg(variadicStringArgs);
 }
 
 static void voidMethodVariadicStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodVariadicStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodStringArgVariadicStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodStringArgVariadicStringArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, stringArg, info[0]);
     V8TRYCATCH_VOID(Vector<String>, variadicStringArgs, toNativeArguments<String>(info, 1));
     imp->voidMethodStringArgVariadicStringArg(stringArg, variadicStringArgs);
 }
 
 static void voidMethodStringArgVariadicStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodStringArgVariadicStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodVariadicTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     Vector<RefPtr<TestInterfaceEmpty> > variadicTestInterfaceEmptyArgs;
     for (int i = 0; i < info.Length(); ++i) {
         if (!V8TestInterfaceEmpty::hasInstance(info[i], info.GetIsolate(), worldType(info.GetIsolate()))) {
             throwTypeError(ExceptionMessages::failedToExecute("voidMethodVariadicTestInterfaceEmptyArg", "TestObjectPython", "parameter 1 is not of type 'TestInterfaceEmpty'."), info.GetIsolate());
             return;
         }
         variadicTestInterfaceEmptyArgs.append(V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[i])));
     }
     imp->voidMethodVariadicTestInterfaceEmptyArg(variadicTestInterfaceEmptyArgs);
 }
 
 static void voidMethodVariadicTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodVariadicTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodTestInterfaceEmptyArgVariadicTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTestInterfaceEmptyArgVariadicTestInterfaceEmptyArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     Vector<RefPtr<TestInterfaceEmpty> > variadicTestInterfaceEmptyArgs;
     for (int i = 1; i < info.Length(); ++i) {
         if (!V8TestInterfaceEmpty::hasInstance(info[i], info.GetIsolate(), worldType(info.GetIsolate()))) {
             throwTypeError(ExceptionMessages::failedToExecute("voidMethodTestInterfaceEmptyArgVariadicTestInterfaceEmptyArg", "TestObjectPython", "parameter 2 is not of type 'TestInterfaceEmpty'."), info.GetIsolate());
             return;
         }
         variadicTestInterfaceEmptyArgs.append(V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[i])));
     }
     imp->voidMethodTestInterfaceEmptyArgVariadicTestInterfaceEmptyArg(testInterfaceEmptyArg, variadicTestInterfaceEmptyArgs);
 }
 
 static void voidMethodTestInterfaceEmptyArgVariadicTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodTestInterfaceEmptyArgVariadicTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedMethodA1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedMethodA", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
@@ skipping 33 matching lines @@
         return;
     }
     exceptionState.throwTypeError("No function was found that matched the signature provided.");
     exceptionState.throwIfNeeded();
 }
 
 static void overloadedMethodAMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedMethodAMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedMethodB1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedMethodB", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
@@ skipping 37 matching lines @@
         return;
     }
     exceptionState.throwTypeError("No function was found that matched the signature provided.");
     exceptionState.throwIfNeeded();
 }
 
 static void overloadedMethodBMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedMethodBMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedMethodC1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedMethodC", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
@@ skipping 33 matching lines @@
         return;
     }
     exceptionState.throwTypeError("No function was found that matched the signature provided.");
     exceptionState.throwIfNeeded();
 }
 
 static void overloadedMethodCMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedMethodCMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedMethodD1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedMethodD", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
@@ skipping 30 matching lines @@
         return;
     }
     exceptionState.throwTypeError("No function was found that matched the signature provided.");
     exceptionState.throwIfNeeded();
 }
 
 static void overloadedMethodDMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedMethodDMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedMethodE1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedMethodE", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
@@ skipping 30 matching lines @@
         return;
     }
     exceptionState.throwTypeError("No function was found that matched the signature provided.");
     exceptionState.throwIfNeeded();
 }
 
 static void overloadedMethodEMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedMethodEMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedMethodF1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedMethodF", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
@@ skipping 30 matching lines @@
         return;
     }
     exceptionState.throwTypeError("No function was found that matched the signature provided.");
     exceptionState.throwIfNeeded();
 }
 
 static void overloadedMethodFMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedMethodFMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedMethodG1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->overloadedMethodG();
 }
 
 static void overloadedMethodG2Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
@@ skipping 16 matching lines @@
         overloadedMethodG2Method(info);
         return;
     }
     throwTypeError(ExceptionMessages::failedToExecute("overloadedMethodG", "TestObjectPython", "No function was found that matched the signature provided."), info.GetIsolate());
 }
 
 static void overloadedMethodGMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedMethodGMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedMethodH1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->overloadedMethodH();
 }
 
 static void overloadedMethodH2Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
@@ skipping 20 matching lines @@
         overloadedMethodH2Method(info);
         return;
     }
     throwTypeError(ExceptionMessages::failedToExecute("overloadedMethodH", "TestObjectPython", "No function was found that matched the signature provided."), info.GetIsolate());
 }
 
 static void overloadedMethodHMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedMethodHMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedPerWorldBindingsMethod1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->overloadedPerWorldBindingsMethod();
 }
 
 static void overloadedPerWorldBindingsMethod1MethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
@@ skipping 24 matching lines @@
         overloadedPerWorldBindingsMethod2Method(info);
         return;
     }
     throwTypeError(ExceptionMessages::failedToExecute("overloadedPerWorldBindingsMethod", "TestObjectPython", "No function was found that matched the signature provided."), info.GetIsolate());
 }
 
 static void overloadedPerWorldBindingsMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedPerWorldBindingsMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedPerWorldBindingsMethod2MethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedPerWorldBindingsMethod", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
@@ skipping 12 matching lines @@
         overloadedPerWorldBindingsMethod2MethodForMainWorld(info);
         return;
     }
     throwTypeError(ExceptionMessages::failedToExecute("overloadedPerWorldBindingsMethod", "TestObjectPython", "No function was found that matched the signature provided."), info.GetIsolate());
 }
 
 static void overloadedPerWorldBindingsMethodMethodCallbackForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedPerWorldBindingsMethodMethodForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void overloadedStaticMethod1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedStaticMethod", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
@@ skipping 31 matching lines @@
         return;
     }
     exceptionState.throwTypeError("No function was found that matched the signature provided.");
     exceptionState.throwIfNeeded();
 }
 
 static void overloadedStaticMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::overloadedStaticMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void addEventListenerMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "addEventListener", "TestObjectPython", info.Holder(), info.GetIsolate());
     EventTarget* impl = V8TestObjectPython::toNative(info.Holder());
     if (DOMWindow* window = impl->toDOMWindow()) {
         if (!BindingSecurity::shouldAllowAccessToFrame(window->frame(), exceptionState)) {
             exceptionState.throwIfNeeded();
             return;
         }
         if (!window->document())
             return;
     }
     RefPtr<EventListener> listener = V8EventListenerList::getEventListener(info[1], false, ListenerFindOrCreate);
     if (listener) {
         V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<WithNullCheck>, eventName, info[0]);
         impl->addEventListener(eventName, listener, info[2]->BooleanValue());
         if (!impl->toNode())
             createHiddenDependency(info.Holder(), info[1], V8TestObjectPython::eventListenerCacheIndex, info.GetIsolate());
     }
 }
 
 static void addEventListenerMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::addEventListenerMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void removeEventListenerMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "removeEventListener", "TestObjectPython", info.Holder(), info.GetIsolate());
     EventTarget* impl = V8TestObjectPython::toNative(info.Holder());
     if (DOMWindow* window = impl->toDOMWindow()) {
         if (!BindingSecurity::shouldAllowAccessToFrame(window->frame(), exceptionState)) {
             exceptionState.throwIfNeeded();
             return;
         }
         if (!window->document())
             return;
     }
     RefPtr<EventListener> listener = V8EventListenerList::getEventListener(info[1], false, ListenerFindOnly);
     if (listener) {
         V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<WithNullCheck>, eventName, info[0]);
         impl->removeEventListener(eventName, listener.get(), info[2]->BooleanValue());
         if (!impl->toNode())
             removeHiddenDependency(info.Holder(), info[1], V8TestObjectPython::eventListenerCacheIndex, info.GetIsolate());
     }
 }
 
 static void removeEventListenerMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::removeEventListenerMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodClampUnsignedShortArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodClampUnsignedShortArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     unsigned clampUnsignedShortArg = 0;
     V8TRYCATCH_VOID(double, clampUnsignedShortArgNativeValue, info[0]->NumberValue());
     if (!std::isnan(clampUnsignedShortArgNativeValue))
         clampUnsignedShortArg = clampTo<unsigned short>(clampUnsignedShortArgNativeValue);
     imp->voidMethodClampUnsignedShortArg(clampUnsignedShortArg);
 }
 
 static void voidMethodClampUnsignedShortArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodClampUnsignedShortArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodClampUnsignedLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodClampUnsignedLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     unsigned clampUnsignedLongArg = 0;
     V8TRYCATCH_VOID(double, clampUnsignedLongArgNativeValue, info[0]->NumberValue());
     if (!std::isnan(clampUnsignedLongArgNativeValue))
         clampUnsignedLongArg = clampTo<unsigned long>(clampUnsignedLongArgNativeValue);
     imp->voidMethodClampUnsignedLongArg(clampUnsignedLongArg);
 }
 
 static void voidMethodClampUnsignedLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodClampUnsignedLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodDefaultUndefinedTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterfaceEmpty*, defaultUndefinedTestInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->voidMethodDefaultUndefinedTestInterfaceEmptyArg(defaultUndefinedTestInterfaceEmptyArg);
 }
 
 static void voidMethodDefaultUndefinedTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodDefaultUndefinedTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodDefaultUndefinedLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodDefaultUndefinedLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, defaultUndefinedLongArg, toInt32(info[0], exceptionState), exceptionState);
     imp->voidMethodDefaultUndefinedLongArg(defaultUndefinedLongArg);
 }
 
 static void voidMethodDefaultUndefinedLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodDefaultUndefinedLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodDefaultUndefinedStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, defaultUndefinedStringArg, info[0]);
     imp->voidMethodDefaultUndefinedStringArg(defaultUndefinedStringArg);
 }
 
 static void voidMethodDefaultUndefinedStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodDefaultUndefinedStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodDefaultNullStringStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, defaultNullStringStringArg, argumentOrNull(info, 0));
     imp->voidMethodDefaultNullStringStringArg(defaultNullStringStringArg);
 }
 
 static void voidMethodDefaultNullStringStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodDefaultNullStringStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodEnforceRangeLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodEnforceRangeLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_EXCEPTION_VOID(int, enforceRangeLongArg, toInt32(info[0], EnforceRange, exceptionState), exceptionState);
     imp->voidMethodEnforceRangeLongArg(enforceRangeLongArg);
 }
 
 static void voidMethodEnforceRangeLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodEnforceRangeLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodTreatNullAsNullStringStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTreatNullAsNullStringStringArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<WithNullCheck>, treatNullAsNullStringStringArg, info[0]);
     imp->voidMethodTreatNullAsNullStringStringArg(treatNullAsNullStringStringArg);
 }
 
 static void voidMethodTreatNullAsNullStringStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodTreatNullAsNullStringStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<WithUndefinedOrNullCheck>, treatNullAsNullStringStringArg, info[0]);
     imp->voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArg(treatNullAsNullStringStringArg);
 }
 
 static void voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingAccessForAllWorldsMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->activityLoggingAccessForAllWorldsMethod();
 }
 
 static void activityLoggingAccessForAllWorldsMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger()) {
         Vector<v8::Handle<v8::Value> > loggerArgs = toNativeArguments<v8::Handle<v8::Value> >(info, 0);
         contextData->activityLogger()->log("TestObjectPython.activityLoggingAccessForAllWorldsMethod", info.Length(), loggerArgs.data(), "Method");
     }
     TestObjectPythonV8Internal::activityLoggingAccessForAllWorldsMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithScriptStateVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     ScriptState* currentState = ScriptState::current();
     if (!currentState)
         return;
     ScriptState& state = *currentState;
     imp->callWithScriptStateVoidMethod(&state);
     if (state.hadException()) {
         v8::Local<v8::Value> exception = state.exception();
         state.clearException();
         throwError(exception, info.GetIsolate());
         return;
     }
 }
 
 static void callWithScriptStateVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::callWithScriptStateVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithScriptStateLongMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     ScriptState* currentState = ScriptState::current();
     if (!currentState)
         return;
     ScriptState& state = *currentState;
     int result = imp->callWithScriptStateLongMethod(&state);
     if (state.hadException()) {
         v8::Local<v8::Value> exception = state.exception();
         state.clearException();
         throwError(exception, info.GetIsolate());
         return;
     }
     v8SetReturnValueInt(info, result);
 }
 
 static void callWithScriptStateLongMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::callWithScriptStateLongMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithExecutionContextVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     ExecutionContext* scriptContext = getExecutionContext();
     imp->callWithExecutionContextVoidMethod(scriptContext);
 }
 
 static void callWithExecutionContextVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::callWithExecutionContextVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithScriptStateExecutionContextVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     ScriptState* currentState = ScriptState::current();
     if (!currentState)
         return;
     ScriptState& state = *currentState;
     ExecutionContext* scriptContext = getExecutionContext();
     imp->callWithScriptStateExecutionContextVoidMethod(&state, scriptContext);
     if (state.hadException()) {
         v8::Local<v8::Value> exception = state.exception();
         state.clearException();
         throwError(exception, info.GetIsolate());
         return;
     }
 }
 
 static void callWithScriptStateExecutionContextVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::callWithScriptStateExecutionContextVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithScriptStateScriptArgumentsVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     ScriptState* currentState = ScriptState::current();
     if (!currentState)
         return;
     ScriptState& state = *currentState;
     RefPtr<ScriptArguments> scriptArguments(createScriptArguments(info, 0));
     imp->callWithScriptStateScriptArgumentsVoidMethod(&state, scriptArguments.release());
     if (state.hadException()) {
         v8::Local<v8::Value> exception = state.exception();
         state.clearException();
         throwError(exception, info.GetIsolate());
         return;
     }
 }
 
 static void callWithScriptStateScriptArgumentsVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::callWithScriptStateScriptArgumentsVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithScriptStateScriptArgumentsVoidMethodOptionalBooleanArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (UNLIKELY(info.Length() <= 0)) {
         ScriptState* currentState = ScriptState::current();
         if (!currentState)
             return;
         ScriptState& state = *currentState;
@@ skipping 19 matching lines @@
         state.clearException();
         throwError(exception, info.GetIsolate());
         return;
     }
 }
 
 static void callWithScriptStateScriptArgumentsVoidMethodOptionalBooleanArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::callWithScriptStateScriptArgumentsVoidMethodOptionalBooleanArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithActiveWindowMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->callWithActiveWindow(activeDOMWindow());
 }
 
 static void callWithActiveWindowMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::callWithActiveWindowMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void callWithActiveWindowScriptWindowMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->callWithActiveWindowScriptWindow(activeDOMWindow(), firstDOMWindow());
 }
 
 static void callWithActiveWindowScriptWindowMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::callWithActiveWindowScriptWindowMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void checkSecurityForNodeVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (!BindingSecurity::shouldAllowAccessToNode(imp->checkSecurityForNodeVoidMethod(exceptionState), exceptionState)) {
         v8SetReturnValueNull(info);
         exceptionState.throwIfNeeded();
         return;
     }
     imp->checkSecurityForNodeVoidMethod();
 }
 
 static void checkSecurityForNodeVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::checkSecurityForNodeVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 #if ENABLE(CONDITION)
 static void conditionalConditionVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->conditionalConditionVoidMethod();
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION)
 static void conditionalConditionVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::conditionalConditionVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 static void conditionalCondition1AndCondition2VoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->conditionalCondition1AndCondition2VoidMethod();
 }
 #endif // ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 
 #if ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 static void conditionalCondition1AndCondition2VoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::conditionalCondition1AndCondition2VoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION_1) && ENABLE(CONDITION_2)
 
 #if ENABLE(CONDITION)
 static void conditionalConditionStaticVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython::conditionalConditionStaticVoidMethod();
 }
 #endif // ENABLE(CONDITION)
 
 #if ENABLE(CONDITION)
 static void conditionalConditionStaticVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::conditionalConditionStaticVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION)
 
 static void customVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     V8TestObjectPython::customVoidMethodMethodCustom(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 #if ENABLE(CONDITION)
 static void conditionalConditionCustomVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     V8TestObjectPython::conditionalConditionCustomVoidMethodMethodCustom(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 #endif // ENABLE(CONDITION)
 
 static void customElementCallbacksVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     imp->customElementCallbacksVoidMethod();
 }
 
 static void customElementCallbacksVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::customElementCallbacksVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void deprecatedVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->deprecatedVoidMethod();
 }
 
 static void deprecatedVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     UseCounter::countDeprecation(activeExecutionContext(), UseCounter::voidMethod);
     TestObjectPythonV8Internal::deprecatedVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void doNotCheckSignatureVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->doNotCheckSignatureVoidMethod();
 }
 
 static void doNotCheckSignatureVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::doNotCheckSignatureVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void implementedAsVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->implementedAsMethodName();
 }
 
 static void implementedAsVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::implementedAsVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void measureAsVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->measureAsVoidMethod();
 }
 
 static void measureAsVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     UseCounter::count(activeExecutionContext(), UseCounter::TestFeature);
     TestObjectPythonV8Internal::measureAsVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void notEnumerableVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->notEnumerableVoidMethod();
 }
 
 static void notEnumerableVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::notEnumerableVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perContextEnabledVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->perContextEnabledVoidMethod();
 }
 
 static void perContextEnabledVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::perContextEnabledVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->perWorldBindingsVoidMethod();
 }
 
 static void perWorldBindingsVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::perWorldBindingsVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsVoidMethodMethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->perWorldBindingsVoidMethod();
 }
 
 static void perWorldBindingsVoidMethodMethodCallbackForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::perWorldBindingsVoidMethodMethodForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingForAllWorldsPerWorldBindingsVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->activityLoggingForAllWorldsPerWorldBindingsVoidMethod();
 }
 
 static void activityLoggingForAllWorldsPerWorldBindingsVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger()) {
         Vector<v8::Handle<v8::Value> > loggerArgs = toNativeArguments<v8::Handle<v8::Value> >(info, 0);
         contextData->activityLogger()->log("TestObjectPython.activityLoggingForAllWorldsPerWorldBindingsVoidMethod", info.Length(), loggerArgs.data(), "Method");
     }
     TestObjectPythonV8Internal::activityLoggingForAllWorldsPerWorldBindingsVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingForAllWorldsPerWorldBindingsVoidMethodMethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->activityLoggingForAllWorldsPerWorldBindingsVoidMethod();
 }
 
 static void activityLoggingForAllWorldsPerWorldBindingsVoidMethodMethodCallbackForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger()) {
         Vector<v8::Handle<v8::Value> > loggerArgs = toNativeArguments<v8::Handle<v8::Value> >(info, 0);
         contextData->activityLogger()->log("TestObjectPython.activityLoggingForAllWorldsPerWorldBindingsVoidMethod", info.Length(), loggerArgs.data(), "Method");
     }
     TestObjectPythonV8Internal::activityLoggingForAllWorldsPerWorldBindingsVoidMethodMethodForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingForIsolatedWorldsPerWorldBindingsVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->activityLoggingForIsolatedWorldsPerWorldBindingsVoidMethod();
 }
 
 static void activityLoggingForIsolatedWorldsPerWorldBindingsVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     V8PerContextData* contextData = V8PerContextData::from(info.GetIsolate()->GetCurrentContext());
     if (contextData && contextData->activityLogger()) {
         Vector<v8::Handle<v8::Value> > loggerArgs = toNativeArguments<v8::Handle<v8::Value> >(info, 0);
         contextData->activityLogger()->log("TestObjectPython.activityLoggingForIsolatedWorldsPerWorldBindingsVoidMethod", info.Length(), loggerArgs.data(), "Method");
     }
     TestObjectPythonV8Internal::activityLoggingForIsolatedWorldsPerWorldBindingsVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void activityLoggingForIsolatedWorldsPerWorldBindingsVoidMethodMethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->activityLoggingForIsolatedWorldsPerWorldBindingsVoidMethod();
 }
 
 static void activityLoggingForIsolatedWorldsPerWorldBindingsVoidMethodMethodCallbackForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::activityLoggingForIsolatedWorldsPerWorldBindingsVoidMethodMethodForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsVoidMethodTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("perWorldBindingsVoidMethodTestInterfaceEmptyArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->perWorldBindingsVoidMethodTestInterfaceEmptyArg(testInterfaceEmptyArg);
 }
 
 static void perWorldBindingsVoidMethodTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::perWorldBindingsVoidMethodTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsVoidMethodTestInterfaceEmptyArgMethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("perWorldBindingsVoidMethodTestInterfaceEmptyArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->perWorldBindingsVoidMethodTestInterfaceEmptyArg(testInterfaceEmptyArg);
 }
 
 static void perWorldBindingsVoidMethodTestInterfaceEmptyArgMethodCallbackForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::perWorldBindingsVoidMethodTestInterfaceEmptyArgMethodForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void raisesExceptionVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "raisesExceptionVoidMethod", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->raisesExceptionVoidMethod(exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
 }
 
 static void raisesExceptionVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::raisesExceptionVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void raisesExceptionStringMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "raisesExceptionStringMethod", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     String result = imp->raisesExceptionStringMethod(exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValueString(info, result, info.GetIsolate());
 }
 
 static void raisesExceptionStringMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::raisesExceptionStringMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void raisesExceptionVoidMethodOptionalLongArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "raisesExceptionVoidMethodOptionalLongArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (UNLIKELY(info.Length() <= 0)) {
         imp->raisesExceptionVoidMethodOptionalLongArg(exceptionState);
         if (exceptionState.throwIfNeeded())
             return;
         return;
     }
     V8TRYCATCH_EXCEPTION_VOID(int, optionalLongArg, toInt32(info[0], exceptionState), exceptionState);
     imp->raisesExceptionVoidMethodOptionalLongArg(optionalLongArg, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
 }
 
 static void raisesExceptionVoidMethodOptionalLongArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::raisesExceptionVoidMethodOptionalLongArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void raisesExceptionVoidMethodTestCallbackInterfaceArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "raisesExceptionVoidMethodTestCallbackInterfaceArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (info.Length() <= 0 || !info[0]->IsFunction()) {
         exceptionState.throwTypeError("The callback provided as parameter 1 is not a function.");
         exceptionState.throwIfNeeded();
         return;
     }
     OwnPtr<TestCallbackInterface> testCallbackInterfaceArg = V8TestCallbackInterface::create(v8::Handle<v8::Function>::Cast(info[0]), getExecutionContext());
     imp->raisesExceptionVoidMethodTestCallbackInterfaceArg(testCallbackInterfaceArg.release(), exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
 }
 
 static void raisesExceptionVoidMethodTestCallbackInterfaceArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::raisesExceptionVoidMethodTestCallbackInterfaceArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void raisesExceptionVoidMethodOptionalTestCallbackInterfaceArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "raisesExceptionVoidMethodOptionalTestCallbackInterfaceArg", "TestObjectPython", info.Holder(), info.GetIsolate());
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     OwnPtr<TestCallbackInterface> optionalTestCallbackInterfaceArg;
     if (info.Length() > 0 && !isUndefinedOrNull(info[0])) {
         if (!info[0]->IsFunction()) {
             exceptionState.throwTypeError("The callback provided as parameter 1 is not a function.");
             exceptionState.throwIfNeeded();
             return;
         }
         optionalTestCallbackInterfaceArg = V8TestCallbackInterface::create(v8::Handle<v8::Function>::Cast(info[0]), getExecutionContext());
     }
     imp->raisesExceptionVoidMethodOptionalTestCallbackInterfaceArg(optionalTestCallbackInterfaceArg.release(), exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
 }
 
 static void raisesExceptionVoidMethodOptionalTestCallbackInterfaceArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::raisesExceptionVoidMethodOptionalTestCallbackInterfaceArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void readOnlyVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->readOnlyVoidMethod();
 }
 
 static void readOnlyVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::readOnlyVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void notEnumerableReadOnlyVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->notEnumerableReadOnlyVoidMethod();
 }
 
 static void notEnumerableReadOnlyVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::notEnumerableReadOnlyVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void runtimeEnabledVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->runtimeEnabledVoidMethod();
 }
 
 static void runtimeEnabledVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::runtimeEnabledVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsRuntimeEnabledVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->perWorldBindingsRuntimeEnabledVoidMethod();
 }
 
 static void perWorldBindingsRuntimeEnabledVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::perWorldBindingsRuntimeEnabledVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsRuntimeEnabledVoidMethodMethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->perWorldBindingsRuntimeEnabledVoidMethod();
 }
 
 static void perWorldBindingsRuntimeEnabledVoidMethodMethodCallbackForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::perWorldBindingsRuntimeEnabledVoidMethodMethodForMainWorld(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void strictTypeCheckingVoidMethodTestInterfaceEmptyArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("strictTypeCheckingVoidMethodTestInterfaceEmptyArg", "TestObjectPython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     if (info.Length() > 0 && !isUndefinedOrNull(info[0]) && !V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate()))) {
         throwTypeError(ExceptionMessages::failedToExecute("strictTypeCheckingVoidMethodTestInterfaceEmptyArg", "TestObjectPython", "parameter 1 is not of type 'TestInterfaceEmpty'."), info.GetIsolate());
         return;
     }
     V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
     imp->strictTypeCheckingVoidMethodTestInterfaceEmptyArg(testInterfaceEmptyArg);
 }
 
 static void strictTypeCheckingVoidMethodTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::strictTypeCheckingVoidMethodTestInterfaceEmptyArgMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void treatReturnedNullStringAsNullStringMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueStringOrNull(info, imp->treatReturnedNullStringAsNullStringMethod(), info.GetIsolate());
 }
 
 static void treatReturnedNullStringAsNullStringMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::treatReturnedNullStringAsNullStringMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void treatReturnedNullStringAsUndefinedStringMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     v8SetReturnValueStringOrUndefined(info, imp->treatReturnedNullStringAsUndefinedStringMethod(), info.GetIsolate());
 }
 
 static void treatReturnedNullStringAsUndefinedStringMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::treatReturnedNullStringAsUndefinedStringMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void unforgeableVoidMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObjectPython* imp = V8TestObjectPython::toNative(info.Holder());
     imp->unforgeableVoidMethod();
 }
 
 static void unforgeableVoidMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectPythonV8Internal::unforgeableVoidMethodMethod(info);
-    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 } // namespace TestObjectPythonV8Internal
 
 static const V8DOMConfiguration::AttributeConfiguration V8TestObjectPythonAttributes[] = {
     {"readonlyStringAttribute", TestObjectPythonV8Internal::readonlyStringAttributeAttributeGetterCallback, 0, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), 0 /* on instance */},
     {"readonlyTestInterfaceEmptyAttribute", TestObjectPythonV8Internal::readonlyTestInterfaceEmptyAttributeAttributeGetterCallback, 0, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), 0 /* on instance */},
     {"readonlyLongAttribute", TestObjectPythonV8Internal::readonlyLongAttributeAttributeGetterCallback, 0, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), 0 /* on instance */},
     {"dateAttribute", TestObjectPythonV8Internal::dateAttributeAttributeGetterCallback, TestObjectPythonV8Internal::dateAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), 0 /* on instance */},
     {"stringAttribute", TestObjectPythonV8Internal::stringAttributeAttributeGetterCallback, TestObjectPythonV8Internal::stringAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), 0 /* on instance */},
@@ skipping 437 matching lines @@
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestObjectPython* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore