Update more bindings classes to use OVERRIDE / FINAL when needed

Source/bindings/v8/V8AbstractEventListener.h

 /*
  * Copyright (C) 2006, 2007, 2008, 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 108 matching lines @@
 
         void setListenerObject(v8::Handle<v8::Object> listener);
 
         void invokeEventHandler(ExecutionContext*, Event*, v8::Local<v8::Value> jsEvent);
 
         // Get the receiver object to use for event listener call.
         v8::Local<v8::Object> getReceiverObject(ExecutionContext*, Event*);
 
     private:
         // Implementation of EventListener function.
-        virtual bool virtualisAttribute() const { return m_isAttribute; }
+        virtual bool virtualisAttribute() const OVERRIDE { return m_isAttribute; }
 
         virtual v8::Local<v8::Value> callListenerFunction(ExecutionContext*, v8::Handle<v8::Value> jsevent, Event*) = 0;
 
         virtual bool shouldPreventDefault(v8::Local<v8::Value> returnValue);
 
         static void setWeakCallback(const v8::WeakCallbackData<v8::Object, V8AbstractEventListener>&);
 
         ScopedPersistent<v8::Object> m_listener;
 
         // Indicates if this is an HTML type listener.
         bool m_isAttribute;
 
         RefPtr<DOMWrapperWorld> m_world;
         v8::Isolate* m_isolate;
     };
 
 } // namespace WebCore
 
 #endif // V8AbstractEventListener_h