Add FINAL decorators to the InlineBox class hierarchy.

Source/core/rendering/InlineBox.h

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 93 matching lines @@
     void operator delete(void*, size_t);
 
 private:
     // The normal operator new is disallowed.
     void* operator new(size_t) throw();
 
 public:
 #ifndef NDEBUG
     void showTreeForThis() const;
     void showLineTreeForThis() const;
-    
+
     virtual void showBox(int = 0) const;
     virtual void showLineTreeAndMark(const InlineBox* = 0, const char* = 0, const InlineBox* = 0, const char* = 0, const RenderObject* = 0, int = 0) const;
     virtual const char* boxName() const;
 #endif
 
     bool isText() const { return m_bitfields.isText(); }
     void setIsText(bool isText) { m_bitfields.setIsText(isText); }
  
     virtual bool isInlineFlowBox() const { return false; }
     virtual bool isInlineTextBox() const { return false; }
@@ skipping 313 matching lines @@
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::InlineBox*);
 void showLineTree(const WebCore::InlineBox*);
 #endif
 
 #endif // InlineBox_h