Update bindings classes to use OVERRIDE / FINAL when needed

Source/bindings/v8/custom/V8ArrayBufferCustom.h

 /*
  * Copyright (C) 2012 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 16 matching lines @@
 #define V8ArrayBufferCustom_h
 
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8DOMWrapper.h"
 #include "bindings/v8/WrapperTypeInfo.h"
 #include "wtf/ArrayBuffer.h"
 #include <v8.h>
 
 namespace WebCore {
 
-class V8ArrayBufferDeallocationObserver: public WTF::ArrayBufferDeallocationObserver {
+class V8ArrayBufferDeallocationObserver FINAL: public WTF::ArrayBufferDeallocationObserver {
 public:
-    virtual void arrayBufferDeallocated(unsigned sizeInBytes)
+    virtual void arrayBufferDeallocated(unsigned sizeInBytes) OVERRIDE
     {
         v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(-static_cast<int>(sizeInBytes));
     }
     static V8ArrayBufferDeallocationObserver* instanceTemplate();
 
 protected:
     virtual void blinkAllocatedMemory(unsigned sizeInBytes) OVERRIDE
     {
         v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(static_cast<int>(sizeInBytes));
     }
@@ skipping 108 matching lines @@
 
 template<class CallbackInfo, class Wrappable>
 inline void v8SetReturnValueFast(const CallbackInfo& info, PassRefPtr< ArrayBuffer > impl, Wrappable* wrappable)
 {
     v8SetReturnValueFast(info, impl.get(), wrappable);
 }
 
 } // namespace WebCore
 
 #endif // V8ArrayBufferCustom_h