Apply FINAL to the RenderObject hierarchy.

Source/core/rendering/RenderQuote.h

 /*
  * Copyright (C) 2011 Nokia Inc. All rights reserved.
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * 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 13 matching lines @@
 
 #include "QuotesData.h"
 #include "RenderStyle.h"
 #include "RenderStyleConstants.h"
 #include "RenderText.h"
 
 namespace WebCore {
 
 class Document;
 
-class RenderQuote : public RenderText {
+class RenderQuote FINAL : public RenderText {
 public:
     RenderQuote(Document*, const QuoteType);
     virtual ~RenderQuote();
     void attachQuote();
 
 private:
     void detachQuote();
 
     virtual void willBeDestroyed() OVERRIDE;
     virtual const char* renderName() const OVERRIDE { return "RenderQuote"; };
@@ skipping 18 matching lines @@
     ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isQuote());
     return static_cast<RenderQuote*>(object);
 }
 
 // This will catch anyone doing an unnecessary cast.
 void toRenderQuote(const RenderQuote*);
 
 } // namespace WebCore
 
 #endif // RenderQuote_h