CC Animations: Port UI Browser Compositor to use compositor animation timelines.

ui/compositor/layer_animation_delegate.h

Index: ui/compositor/layer_animation_delegate.h
diff --git a/ui/compositor/layer_animation_delegate.h b/ui/compositor/layer_animation_delegate.h
index cc83f43d5364be081441defbc0995d934735d469..e1ec62451ca795add295898d3753f7dfdd8b049d 100644
--- a/ui/compositor/layer_animation_delegate.h
+++ b/ui/compositor/layer_animation_delegate.h
@@ -39,11 +39,15 @@ class COMPOSITOR_EXPORT LayerAnimationDelegate {
   virtual float GetGrayscaleForAnimation() const = 0;
   virtual SkColor GetColorForAnimation() const = 0;
   virtual float GetDeviceScaleFactor() const = 0;
+
+  // TODO(loyso): Extract these 3 methods as a separate
+  // LayerThreadedAnimationDelegate.
   virtual void AddThreadedAnimation(scoped_ptr<cc::Animation> animation) = 0;
   virtual void RemoveThreadedAnimation(int animation_id) = 0;
-  virtual LayerAnimatorCollection* GetLayerAnimatorCollection() = 0;
   virtual cc::Layer* GetCcLayer() const = 0;
 
+  virtual LayerAnimatorCollection* GetLayerAnimatorCollection() = 0;
+
  protected:
   virtual ~LayerAnimationDelegate() {}
 };