Update bindings classes to use OVERRIDE / FINAL when needed

Source/bindings/v8/V8ErrorHandler.h

 /*
  * Copyright (C) 2010 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 22 matching lines @@
 
 #include "bindings/v8/V8EventListener.h"
 #include "wtf/PassRefPtr.h"
 #include <v8.h>
 
 namespace WebCore {
 
 class ErrorEvent;
 class Frame;
 
-class V8ErrorHandler : public V8EventListener {
+class V8ErrorHandler FINAL : public V8EventListener {
 public:
     static PassRefPtr<V8ErrorHandler> create(v8::Local<v8::Object> listener, bool isInline, v8::Isolate* isolate)
     {
         return adoptRef(new V8ErrorHandler(listener, isInline, isolate));
     }
 
     static void storeExceptionOnErrorEventWrapper(ErrorEvent*, v8::Handle<v8::Value>, v8::Isolate*);
 
 private:
     V8ErrorHandler(v8::Local<v8::Object> listener, bool isInline, v8::Isolate*);
 
-    virtual v8::Local<v8::Value> callListenerFunction(ExecutionContext*, v8::Handle<v8::Value> jsEvent, Event*);
-    virtual bool shouldPreventDefault(v8::Local<v8::Value> returnValue);
+    virtual v8::Local<v8::Value> callListenerFunction(ExecutionContext*, v8::Handle<v8::Value> jsEvent, Event*) OVERRIDE;
+    virtual bool shouldPreventDefault(v8::Local<v8::Value> returnValue) OVERRIDE;
 };
 
 } // namespace WebCore
 
 #endif // V8ErrorHandler_h