Apply FINAL to the RenderObject hierarchy.

Source/core/rendering/RenderPart.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 15 matching lines @@
 #include "RenderWidget.h"
 
 namespace WebCore {
 
 // Renderer for frames via RenderFrameBase, and plug-ins via RenderEmbeddedObject.
 class RenderPart : public RenderWidget {
 public:
     explicit RenderPart(Element*);
     virtual ~RenderPart();
 
-    virtual void setWidget(PassRefPtr<Widget>);
+    virtual void setWidget(PassRefPtr<Widget>) OVERRIDE FINAL;
     virtual void viewCleared();
 
     bool requiresAcceleratedCompositing() const;
 
-    virtual bool needsPreferredWidthsRecalculation() const;
-    virtual RenderBox* embeddedContentBox() const;
+    virtual bool needsPreferredWidthsRecalculation() const OVERRIDE FINAL;
+    virtual RenderBox* embeddedContentBox() const OVERRIDE FINAL;
 
     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE;
 
 protected:
     virtual bool requiresLayer() const;
 
 private:
-    virtual bool isRenderPart() const { return true; }
+    virtual bool isRenderPart() const OVERRIDE FINAL { return true; }
     virtual const char* renderName() const { return "RenderPart"; }
 };
 
 inline RenderPart* toRenderPart(RenderObject* object)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isRenderPart());
     return static_cast<RenderPart*>(object);
 }
 
 // This will catch anyone doing an unnecessary cast.
 void toRenderPart(const RenderPart*);
 
 }
 
 #endif