Apply FINAL to the RenderObject hierarchy.

Source/core/rendering/RenderTableSection.h

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 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
@@ skipping 42 matching lines @@
     unsigned& end() { return m_end; }
 
 private:
     unsigned m_start;
     unsigned m_end;
 };
 
 class RenderTableCell;
 class RenderTableRow;
 
-class RenderTableSection : public RenderBox {
+class RenderTableSection FINAL : public RenderBox {
 public:
     RenderTableSection(Element*);
     virtual ~RenderTableSection();
 
     RenderObject* firstChild() const { ASSERT(children() == virtualChildren()); return children()->firstChild(); }
     RenderObject* lastChild() const { ASSERT(children() == virtualChildren()); return children()->lastChild(); }
 
     const RenderObjectChildList* children() const { return &m_children; }
     RenderObjectChildList* children() { return &m_children; }
 
@@ skipping 217 matching lines @@
     ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isTableSection());
     return static_cast<const RenderTableSection*>(object);
 }
 
 // This will catch anyone doing an unnecessary cast.
 void toRenderTableSection(const RenderTableSection*);
 
 } // namespace WebCore
 
 #endif // RenderTableSection_h