FINALizing of the Node hierarchy.

Source/core/html/ImageDocument.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 14 matching lines @@
 #ifndef ImageDocument_h
 #define ImageDocument_h
 
 #include "HTMLDocument.h"
 
 namespace WebCore {
 
 class CachedImage;
 class ImageDocumentElement;
 
-class ImageDocument : public HTMLDocument {
+class ImageDocument FINAL : public HTMLDocument {
 public:
     static PassRefPtr<ImageDocument> create(Frame* frame, const KURL& url)
     {
         return adoptRef(new ImageDocument(frame, url));
     }
 
     CachedImage* cachedImage();
     ImageDocumentElement* imageElement() const { return m_imageElement; }
     void disconnectImageElement() { m_imageElement = 0; }
     
@@ skipping 37 matching lines @@
     ASSERT_WITH_SECURITY_IMPLICATION(!document || document->isImageDocument());
     return static_cast<const ImageDocument*>(document);
 }
 
 // This will catch anyone doing an unnecessary cast.
 void toImageDocument(const ImageDocument*);
 
 }
 
 #endif // ImageDocument_h