Apply FINAL to the RenderObject hierarchy.

Source/core/rendering/RenderRubyRun.h

 /*
  * Copyright (C) 2009 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 23 matching lines @@
 #include "RenderBlock.h"
 
 namespace WebCore {
 
 class RenderRubyBase;
 class RenderRubyText;
 
 // RenderRubyRun are 'inline-block/table' like objects,and wrap a single pairing of a ruby base with its ruby text(s).
 // See RenderRuby.h for further comments on the structure
 
-class RenderRubyRun : public RenderBlock {
+class RenderRubyRun FINAL : public RenderBlock {
 public:
     virtual ~RenderRubyRun();
 
     bool hasRubyText() const;
     bool hasRubyBase() const;
     bool isEmpty() const;
     RenderRubyText* rubyText() const;
     RenderRubyBase* rubyBase() const;
     RenderRubyBase* rubyBaseSafe(); // creates the base if it doesn't already exist
 
@@ skipping 33 matching lines @@
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isBox());
     return static_cast<const RenderRubyRun*>(object);
 }
 
 void toRenderRubyRun(const RenderRubyRun*);
 
 } // namespace WebCore
 
 #endif // RenderRubyRun_h