Implement frame attribution (FrameBlamer)

third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.cpp

 /*
  * Copyright (C) 2009 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 #include "bindings/core/v8/DOMDataStore.h"
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8HiddenValue.h"
 #include "bindings/core/v8/V8ObjectConstructor.h"
 #include "bindings/core/v8/V8RecursionScope.h"
 #include "bindings/core/v8/V8ScriptRunner.h"
 #include "core/frame/Deprecation.h"
 #include "core/inspector/MainThreadDebugger.h"
 #include "platform/ScriptForbiddenScope.h"
+#include "platform/TraceEvent.h"
 #include "public/platform/Platform.h"
 #include "wtf/LeakAnnotations.h"
 #include "wtf/MainThread.h"
 
 namespace blink {
 
 static V8PerIsolateData* mainThreadPerIsolateData = 0;
 
 static void beforeCallEnteredCallback(v8::Isolate* isolate)
 {
@@ skipping 296 matching lines @@
 {
     ASSERT(!m_threadDebugger);
     m_threadDebugger = std::move(threadDebugger);
 }
 
 ThreadDebugger* V8PerIsolateData::threadDebugger()
 {
     return m_threadDebugger.get();
 }
 
+void V8PerIsolateData::onTraceLogEnabled()
+{
+    TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID("v8", "Isolate", isolate(), "{}");
+}
+
+void V8PerIsolateData::onTraceLogDisabled()
+{
+}
+
 } // namespace blink