CC Animations: Redirect all compositor animation requests to AnimationHost.

cc/trees/layer_tree_host.h

Index: cc/trees/layer_tree_host.h
diff --git a/cc/trees/layer_tree_host.h b/cc/trees/layer_tree_host.h
index d18d7dabf57baeca514668bcbe72ab82c03d57b8..8a6f270b9e6b1ede3cd1668268d2fb2e8b36b977 100644
--- a/cc/trees/layer_tree_host.h
+++ b/cc/trees/layer_tree_host.h
@@ -256,7 +256,6 @@ class CC_EXPORT LayerTreeHost : public MutatorHostClient {
   HeadsUpDisplayLayer* hud_layer() const { return hud_layer_.get(); }
 
   Proxy* proxy() const { return proxy_.get(); }
-
   AnimationRegistrar* animation_registrar() const {
     return animation_registrar_.get();
   }
@@ -341,6 +340,16 @@ class CC_EXPORT LayerTreeHost : public MutatorHostClient {
       LayerTreeType tree_type,
       const gfx::ScrollOffset& scroll_offset) override;
 
+  bool ScrollOffsetAnimationWasInterrupted(const Layer* layer) const;
+  bool IsAnimatingFilterProperty(const Layer* layer) const;
+  bool IsAnimatingOpacityProperty(const Layer* layer) const;
+  bool IsAnimatingTransformProperty(const Layer* layer) const;
+  bool HasPotentiallyRunningOpacityAnimation(const Layer* layer) const;
+  bool HasPotentiallyRunningTransformAnimation(const Layer* layer) const;
+  bool AnimationsPreserveAxisAlignment(const Layer* layer) const;
+  bool HasAnyAnimation(const Layer* layer) const;
+  bool HasActiveAnimation(const Layer* layer) const;
+
  protected:
   explicit LayerTreeHost(InitParams* params);
   void InitializeThreaded(