[ImageResource 4] Split ImageResource into Resource and Image parts

third_party/WebKit/Source/platform/graphics/BitmapImage.cpp

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2008 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 168 matching lines @@
 Image::SizeAvailability BitmapImage::setData(PassRefPtr<SharedBuffer> data,
                                              bool allDataReceived) {
   if (!data.get())
     return SizeAvailable;
 
   int length = data->size();
   if (!length)
     return SizeAvailable;
 
   // If ImageSource::setData() fails, we know that this is a decode error.
-  // Report size available so that it gets registered as such in ImageResource.
+  // Report size available so that it gets registered as such in
+  // ImageResourceContent.
   if (!m_source.setData(std::move(data), allDataReceived))
     return SizeAvailable;
 
   return dataChanged(allDataReceived);
 }
 
 Image::SizeAvailability BitmapImage::dataChanged(bool allDataReceived) {
   TRACE_EVENT0("blink", "BitmapImage::dataChanged");
 
   // Clear all partially-decoded frames. For most image formats, there is only
@@ skipping 421 matching lines @@
     getImageObserver()->animationAdvanced(this);
 
   return true;
 }
 
 void BitmapImage::notifyObserversOfAnimationAdvance(TimerBase*) {
   getImageObserver()->animationAdvanced(this);
 }
 
 }  // namespace blink