Add use counters for using Attrs as Nodes.

Source/bindings/tests/results/V8SupportTestInterface.cpp

Index: Source/bindings/tests/results/V8SupportTestInterface.cpp
diff --git a/Source/bindings/tests/results/V8SupportTestInterface.cpp b/Source/bindings/tests/results/V8SupportTestInterface.cpp
index d369c76da09b0402f55173c03fdcdb5e066a2120..502ac802f8f4b5fa432a8e9be0954e867d9f7d50 100644
--- a/Source/bindings/tests/results/V8SupportTestInterface.cpp
+++ b/Source/bindings/tests/results/V8SupportTestInterface.cpp
@@ -34,6 +34,7 @@
 #include "V8SupportTestInterface.h"
 
 #include "RuntimeEnabledFeatures.h"
+#include "V8Attr.h"
 #include "V8Node.h"
 #include "V8TestObject.h"
 #include "bindings/tests/idls/testing/SupportTestPartialInterface.h"
@@ -42,6 +43,7 @@
 #include "bindings/v8/V8ObjectConstructor.h"
 #include "core/dom/ContextFeatures.h"
 #include "core/dom/Document.h"
+#include "core/frame/UseCounter.h"
 #include "platform/TraceEvent.h"
 #include "wtf/GetPtr.h"
 #include "wtf/RefPtr.h"
@@ -223,6 +225,8 @@ static void supplementalNodeAttributeSetter(v8::Local<v8::Value> jsValue, const
 static void supplementalNodeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
+    if (V8DOMWrapper::isWrapperOfType(jsValue, &V8Attr::wrapperTypeInfo))
+        UseCounter::count(activeExecutionContext(), UseCounter::AttrUsedAsNodeParameter);
     SupportTestInterfaceV8Internal::supplementalNodeAttributeSetter(jsValue, info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
@@ -258,6 +262,8 @@ static void Node13AttributeSetter(v8::Local<v8::Value> jsValue, const v8::Proper
 static void Node13AttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
+    if (V8DOMWrapper::isWrapperOfType(jsValue, &V8Attr::wrapperTypeInfo))
+        UseCounter::count(activeExecutionContext(), UseCounter::AttrUsedAsNodeParameter);
     SupportTestInterfaceV8Internal::Node13AttributeSetter(jsValue, info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
@@ -293,6 +299,8 @@ static void Node14AttributeSetter(v8::Local<v8::Value> jsValue, const v8::Proper
 static void Node14AttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
+    if (V8DOMWrapper::isWrapperOfType(jsValue, &V8Attr::wrapperTypeInfo))
+        UseCounter::count(activeExecutionContext(), UseCounter::AttrUsedAsNodeParameter);
     SupportTestInterfaceV8Internal::Node14AttributeSetter(jsValue, info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }