Update SVG classes to use OVERRIDE / FINAL when needed

Source/core/svg/graphics/SVGImageChromeClient.h

 /*
  * Copyright (C) 2012 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 16 matching lines @@
  */
 
 #ifndef SVGImageChromeClient_h
 #define SVGImageChromeClient_h
 
 #include "core/loader/EmptyClients.h"
 #include "platform/graphics/ImageObserver.h"
 
 namespace WebCore {
 
-class SVGImageChromeClient : public EmptyChromeClient {
+class SVGImageChromeClient FINAL : public EmptyChromeClient {
     WTF_MAKE_NONCOPYABLE(SVGImageChromeClient); WTF_MAKE_FAST_ALLOCATED;
 public:
     SVGImageChromeClient(SVGImage* image)
         : m_image(image)
     {
     }
 
-    virtual bool isSVGImageChromeClient() const { return true; }
+    virtual bool isSVGImageChromeClient() const OVERRIDE { return true; }
     SVGImage* image() const { return m_image; }
 
 private:
-    virtual void chromeDestroyed()
+    virtual void chromeDestroyed() OVERRIDE
     {
         m_image = 0;
     }
 
-    virtual void invalidateContentsAndRootView(const IntRect& r)
+    virtual void invalidateContentsAndRootView(const IntRect& r) OVERRIDE
     {
         // If m_image->m_page is null, we're being destructed, don't fire changedInRect() in that case.
         if (m_image && m_image->imageObserver() && m_image->m_page)
             m_image->imageObserver()->changedInRect(m_image, r);
     }
 
     SVGImage* m_image;
 };
 
 DEFINE_TYPE_CASTS(SVGImageChromeClient, ChromeClient, client, client->isSVGImageChromeClient(), client.isSVGImageChromeClient());
 
 }
 
 #endif // SVGImageChromeClient_h