Inherit EventTarget interface instead of duplicating its code

Source/bindings/v8/V8DOMWrapper.h

 /*
  * 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:
  * 
  *     * 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 31 matching lines @@
 
     class V8DOMWrapper {
     public:
 #ifndef NDEBUG
         // Checks if a v8 value can be a DOM wrapper
         static bool maybeDOMWrapper(v8::Handle<v8::Value>);
 #endif
 
         static v8::Local<v8::Object> createWrapper(v8::Handle<v8::Object> creationContext, WrapperTypeInfo*, void*, v8::Isolate*);
 
-        template<typename T>
+        template<typename V8T, typename T>
         static inline v8::Handle<v8::Object> associateObjectWithWrapper(PassRefPtr<T>, WrapperTypeInfo*, v8::Handle<v8::Object>, v8::Isolate*, WrapperConfiguration::Lifetime);
         static inline void setNativeInfo(v8::Handle<v8::Object>, WrapperTypeInfo*, void*);
         static inline void clearNativeInfo(v8::Handle<v8::Object>, WrapperTypeInfo*);
 
         static bool isDOMWrapper(v8::Handle<v8::Value>);
         static bool isWrapperOfType(v8::Handle<v8::Value>, WrapperTypeInfo*);
     };
 
     inline void V8DOMWrapper::setNativeInfo(v8::Handle<v8::Object> wrapper, WrapperTypeInfo* type, void* object)
     {
         ASSERT(wrapper->InternalFieldCount() >= 2);
         ASSERT(object);
         ASSERT(type);
         wrapper->SetAlignedPointerInInternalField(v8DOMWrapperObjectIndex, object);
         wrapper->SetAlignedPointerInInternalField(v8DOMWrapperTypeIndex, type);
     }
 
     inline void V8DOMWrapper::clearNativeInfo(v8::Handle<v8::Object> wrapper, WrapperTypeInfo* type)
     {
         ASSERT(wrapper->InternalFieldCount() >= 2);
         ASSERT(type);
         wrapper->SetAlignedPointerInInternalField(v8DOMWrapperTypeIndex, type);
         wrapper->SetAlignedPointerInInternalField(v8DOMWrapperObjectIndex, 0);
     }
 
-    template<typename T>
+    template<typename V8T, typename T>
     inline v8::Handle<v8::Object> V8DOMWrapper::associateObjectWithWrapper(PassRefPtr<T> object, WrapperTypeInfo* type, v8::Handle<v8::Object> wrapper, v8::Isolate* isolate, WrapperConfiguration::Lifetime lifetime)
     {
-        setNativeInfo(wrapper, type, object.get());
+        setNativeInfo(wrapper, type, V8T::toInternalPointer(object.get()));
         ASSERT(maybeDOMWrapper(wrapper));
         WrapperConfiguration configuration = buildWrapperConfiguration(object.get(), lifetime);
-        DOMDataStore::setWrapper(object.leakRef(), wrapper, isolate, configuration);
+        DOMDataStore::setWrapper<V8T>(object.leakRef(), wrapper, isolate, configuration);
         return wrapper;
     }
 
 }
 
 #endif // V8DOMWrapper_h