Reland r107720 - Enable the new layer animation framework.

ui/gfx/compositor/layer_delegate.h

Index: ui/gfx/compositor/layer_delegate.h
diff --git a/ui/gfx/compositor/layer_delegate.h b/ui/gfx/compositor/layer_delegate.h
index 973d12f97448545494eb0b95409c1aeb3ab6b04b..474689e5be61997add1d0b578ac78355eb5e9010 100644
--- a/ui/gfx/compositor/layer_delegate.h
+++ b/ui/gfx/compositor/layer_delegate.h
@@ -14,7 +14,7 @@ class Canvas;
 
 namespace ui {
 
-class Animation;
+class LayerAnimationSequence;
 
 // A delegate interface implemented by an object that renders to a Layer.
 class COMPOSITOR_EXPORT LayerDelegate {
@@ -23,8 +23,8 @@ class COMPOSITOR_EXPORT LayerDelegate {
   // clipped to the Layer's invalid rect.
   virtual void OnPaintLayer(gfx::Canvas* canvas) = 0;
 
-  // Called when |animation| ends.
-  virtual void OnLayerAnimationEnded(const ui::Animation* animation) = 0;
+  // Called when |seq| ends.
+  virtual void OnLayerAnimationEnded(const LayerAnimationSequence* seq) = 0;
 
  protected:
   virtual ~LayerDelegate() {}