Apply FINAL to the RenderObject hierarchy.

Source/core/rendering/RenderCounter.h

 /*
  * Copyright (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007, 2008, 2009 Apple 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 11 matching lines @@
 #ifndef RenderCounter_h
 #define RenderCounter_h
 
 #include "CounterContent.h"
 #include "RenderText.h"
 
 namespace WebCore {
 
 class CounterNode;
 
-class RenderCounter : public RenderText {
+class RenderCounter FINAL : public RenderText {
 public:
     RenderCounter(Document*, const CounterContent&);
     virtual ~RenderCounter();
 
     static void destroyCounterNodes(RenderObject*);
     static void destroyCounterNode(RenderObject*, const AtomicString& identifier);
     static void rendererSubtreeAttached(RenderObject*);
     static void rendererRemovedFromTree(RenderObject*);
     static void rendererStyleChanged(RenderObject*, const RenderStyle* oldStyle, const RenderStyle* newStyle);
 
@@ skipping 29 matching lines @@
 void toRenderCounter(const RenderCounter*);
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showCounterRendererTree(const WebCore::RenderObject*, const char* counterName = 0);
 #endif
 
 #endif // RenderCounter_h