Mostly merge HTMLElement into Element.

sky/engine/core/html/HTMLImageElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google 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 302 matching lines @@
 {
     return imageLoader().imageComplete();
 }
 
 void HTMLImageElement::didMoveToNewDocument(Document& oldDocument)
 {
     imageLoader().elementDidMoveToNewDocument();
     HTMLElement::didMoveToNewDocument(oldDocument);
 }
 
-Image* HTMLImageElement::imageContents()
-{
-    if (!imageLoader().imageComplete())
-        return 0;
-
-    return imageLoader().image()->image();
-}
-
 PassRefPtr<Image> HTMLImageElement::getSourceImageForCanvas(SourceImageMode, SourceImageStatus* status) const
 {
     if (!complete() || !cachedImage()) {
         *status = IncompleteSourceImageStatus;
         return nullptr;
     }
 
     if (cachedImage()->errorOccurred()) {
         *status = UndecodableSourceImageStatus;
         return nullptr;
@@ skipping 42 matching lines @@
     }
     imageLoader().updateFromElement(behavior);
 }
 
 const KURL& HTMLImageElement::sourceURL() const
 {
     return cachedImage()->response().url();
 }
 
 }