Get rid of CompositingState.

sky/engine/core/animation/CompositorAnimations.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 229 matching lines @@
         // FIXME: Support non-linear timing functions in the compositor for
         // more than two keyframes and step timing functions in the compositor.
         return false;
     }
 
     return true;
 }
 
 bool CompositorAnimations::canStartAnimationOnCompositor(const Element& element)
 {
-    return element.renderer() && element.renderer()->compositingState() == PaintsIntoOwnBacking;
+    return false;
 }
 
 bool CompositorAnimations::startAnimationOnCompositor(const Element& element, double startTime, double timeOffset, const Timing& timing, const AnimationEffect& effect, Vector<int>& startedAnimationIds)
 {
     // FIXME(sky): Remove CompositorAnimations entirely.
     ASSERT_NOT_REACHED();
     return true;
 }
 
 void CompositorAnimations::cancelAnimationOnCompositor(const Element& element, int id)
@@ skipping 229 matching lines @@
         animation->setIterations(compositorTiming.adjustedIterationCount);
         animation->setTimeOffset(compositorTiming.scaledTimeOffset);
         animation->setAlternatesDirection(compositorTiming.alternate);
 
         animations.append(animation.release());
     }
     ASSERT(!animations.isEmpty());
 }
 
 } // namespace blink