Remove support for [EventTarget] IDL extended attribute

Source/bindings/tests/results/V8TestInterfaceImplementedAs.cpp

 /*
     This file is part of the Blink open source project.
     This file has been auto-generated by CodeGeneratorV8.pm. DO NOT MODIFY!
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
@@ skipping 14 matching lines @@
 #include "bindings/v8/ExceptionState.h"
 #include "bindings/v8/ScriptController.h"
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8DOMConfiguration.h"
 #include "bindings/v8/V8DOMWrapper.h"
 #include "core/dom/ContextFeatures.h"
 #include "core/dom/Document.h"
 #include "core/page/Frame.h"
 #include "core/platform/chromium/TraceEvent.h"
 #include "wtf/GetPtr.h"
-#include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/UnusedParam.h"
 
 namespace WebCore {
 
 static void initializeScriptWrappableForInterface(RealClass* object)
 {
     if (ScriptWrappable::wrapperCanBeStoredInObject(object))
         ScriptWrappable::setTypeInfoInObject(object, &V8TestInterfaceImplementedAs::info);
     else
@@ skipping 191 matching lines @@
     installPerContextProperties(wrapper, impl.get(), isolate);
     V8DOMWrapper::associateObjectWithWrapper<V8TestInterfaceImplementedAs>(impl, &info, wrapper, isolate, WrapperConfiguration::Independent);
     return wrapper;
 }
 void V8TestInterfaceImplementedAs::derefObject(void* object)
 {
     fromInternalPointer(object)->deref();
 }
 
 } // namespace WebCore