Remove CSS clients of ImageResource

sky/engine/core/animation/animatable/AnimatableValueTestHelper.cpp

 /*
  * Copyright (c) 2013, 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 31 matching lines @@
 {
     *os << "AnimatableClipPathOperation@" << &animValue;
 }
 
 void PrintTo(const AnimatableColor& animColor, ::std::ostream* os)
 {
     *os << "AnimatableColor("
         << animColor.color().serialized().utf8().data() << ")";
 }
 
-void PrintTo(const AnimatableImage& animImage, ::std::ostream* os)
-{
-    PrintTo(*(animImage.toCSSValue()), os, "AnimatableImage");
-}
-
 void PrintTo(const AnimatableNeutral& animValue, ::std::ostream* os)
 {
     *os << "AnimatableNeutral@" << &animValue;
 }
 
 void PrintTo(const AnimatableRepeatable& animValue, ::std::ostream* os)
 {
     *os << "AnimatableRepeatable(";
 
     const Vector<RefPtr<AnimatableValue> > v = animValue.values();
@@ skipping 64 matching lines @@
 {
     PrintTo(*(animUnknown.toCSSValue().get()), os, "AnimatableUnknown");
 }
 
 void PrintTo(const AnimatableValue& animValue, ::std::ostream* os)
 {
     if (animValue.isClipPathOperation())
         PrintTo(toAnimatableClipPathOperation(animValue), os);
     else if (animValue.isColor())
         PrintTo(toAnimatableColor(animValue), os);
-    else if (animValue.isImage())
-        PrintTo(toAnimatableImage(animValue), os);
     else if (animValue.isNeutral())
         PrintTo(static_cast<const AnimatableNeutral&>(animValue), os);
     else if (animValue.isRepeatable())
         PrintTo(toAnimatableRepeatable(animValue), os);
     else if (animValue.isShapeValue())
         PrintTo(toAnimatableShapeValue(animValue), os);
     else if (animValue.isStrokeDasharrayList())
         PrintTo(toAnimatableStrokeDasharrayList(animValue), os);
     else if (animValue.isTransform())
         PrintTo(toAnimatableTransform(animValue), os);
     else if (animValue.isUnknown())
         PrintTo(toAnimatableUnknown(animValue), os);
     else
         *os << "Unknown AnimatableValue - update ifelse chain in AnimatableValueTestHelper.h";
 }
 
 } // namespace blink