CC Animations: Establish AnimationHost, AnimationTimeline and AnimationPlayer

cc/blink/web_compositor_support_impl.h

Index: cc/blink/web_compositor_support_impl.h
diff --git a/cc/blink/web_compositor_support_impl.h b/cc/blink/web_compositor_support_impl.h
index 4b416912c935ae581691abff93e1048f2c96d347..e6a8a1844c905deee1fed156a9d0c6a811eb1580 100644
--- a/cc/blink/web_compositor_support_impl.h
+++ b/cc/blink/web_compositor_support_impl.h
@@ -61,6 +61,9 @@ class CC_BLINK_EXPORT WebCompositorSupportImpl
   virtual blink::WebTransformOperations* createTransformOperations();
   virtual blink::WebFilterOperations* createFilterOperations();
 
+  virtual blink::WebCompositorAnimationPlayer* createAnimationPlayer();
+  virtual blink::WebCompositorAnimationTimeline* createAnimationTimeline();
+
  private:
   DISALLOW_COPY_AND_ASSIGN(WebCompositorSupportImpl);
 };