[ImageResource 4] Split ImageResource into Resource and Image parts

third_party/WebKit/Source/core/html/HTMLImageElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 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 57 matching lines @@
   unsigned height();
 
   unsigned naturalWidth() const;
   unsigned naturalHeight() const;
   const String& currentSrc() const;
 
   bool isServerMap() const;
 
   String altText() const final;
 
-  ImageResource* cachedImage() const { return imageLoader().image(); }
-  void setImageResource(ImageResource* i) { imageLoader().setImage(i); }
+  ImageResourceContent* cachedImage() const { return imageLoader().image(); }
+  ImageResource* cachedImageResourceForImageDocument() const {
+    return imageLoader().imageResourceForImageDocument();
+  }
+  void setImageResource(ImageResourceContent* i) { imageLoader().setImage(i); }
 
   void setLoadingImageDocument() { imageLoader().setLoadingImageDocument(); }
 
   void setHeight(unsigned);
 
   KURL src() const;
   void setSrc(const String&);
 
   void setWidth(unsigned);
 
@@ skipping 107 matching lines @@
   unsigned m_elementCreatedByParser : 1;
   unsigned m_useFallbackContent : 1;
   unsigned m_isFallbackImage : 1;
 
   ReferrerPolicy m_referrerPolicy;
 };
 
 }  // namespace blink
 
 #endif  // HTMLImageElement_h