Don't recreate SkImages for high-res (GIF, WEBP...) animations.

third_party/WebKit/Source/platform/DragImageTest.cpp

 /*
  * Copyright (C) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 59 matching lines @@
     PassRefPtr<SkImage> imageForCurrentFrame() override
     {
         return m_image;
     }
 
     bool currentFrameKnownToBeOpaque(MetadataMode = UseCurrentMetadata) override
     {
         return false;
     }
 
-    void destroyDecodedData(bool) override
+    void destroyDecodedData() override
     {
         // Image pure virtual stub.
     }
 
     void draw(SkCanvas*, const SkPaint&, const FloatRect&, const FloatRect&, RespectImageOrientationEnum, ImageClampingMode) override
     {
         // Image pure virtual stub.
     }
 
 private:
@@ skipping 137 matching lines @@
     {
         SkAutoLockPixels lock1(dragBitmap);
         SkAutoLockPixels lock2(expectedBitmap);
         for (int x = 0; x < dragBitmap.width(); ++x)
             for (int y = 0; y < dragBitmap.height(); ++y)
                 EXPECT_EQ(expectedBitmap.getColor(x, y), dragBitmap.getColor(x, y));
     }
 }
 
 } // namespace blink