Add a origin clean flag in ImageBitmap class

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 374 matching lines @@
 PassRefPtr<SkImage> BitmapImage::imageForCurrentFrame()
 {
     return frameAtIndex(currentFrame());
 }
 
 PassRefPtr<Image> BitmapImage::imageForDefaultFrame()
 {
     if (frameCount() > 1) {
         RefPtr<SkImage> firstFrame = frameAtIndex(0);
         if (firstFrame)
-            return StaticBitmapImage::create(firstFrame);
+            return StaticBitmapImage::create(firstFrame, true);

[Justin Novosad, 2016/01/07 17:12:01]

Really? A bitmap Image can be cross-origin.

[xidachen, 2016/01/08 18:07:55]

Acknowledged.

     }
 
     return Image::imageForDefaultFrame();
 }
 
 bool BitmapImage::frameHasAlphaAtIndex(size_t index)
 {
     if (m_frames.size() <= index)
         return true;
 
@@ skipping 236 matching lines @@
     destroyDecodedDataIfNecessary();
 
     // We need to draw this frame if we advanced to it while not skipping, or if
     // while trying to skip frames we hit the last frame and thus had to stop.
     if (skippingFrames != advancedAnimation)
         imageObserver()->animationAdvanced(this);
     return advancedAnimation;
 }
 
 } // namespace blink