Ref count layer animation controllers.

cc/layer_animation_event_observer.h

Index: cc/layer_animation_event_observer.h
diff --git a/cc/layer_animation_observer.h b/cc/layer_animation_event_observer.h
similarity index 60%
rename from cc/layer_animation_observer.h
rename to cc/layer_animation_event_observer.h
index 16a10b9f1cb52f97d4d343e2161bcf665fabeb32..a66d026d17107d1e51af6acb03795937faa5c6ef 100644
--- a/cc/layer_animation_observer.h
+++ b/cc/layer_animation_event_observer.h
@@ -2,17 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CC_LAYER_ANIMATION_OBSERVER_H_
-#define CC_LAYER_ANIMATION_OBSERVER_H_
+#ifndef CC_LAYER_ANIMATION_EVENT_OBSERVER_H_
+#define CC_LAYER_ANIMATION_EVENT_OBSERVER_H_
 
 namespace cc {
 
-class CC_EXPORT LayerAnimationObserver {
+class CC_EXPORT LayerAnimationEventObserver {
  public:
   virtual void OnAnimationStarted(const AnimationEvent& event) = 0;
 };
 
 } // namespace cc
 
-#endif  // CC_LAYER_ANIMATION_OBSERVER_H_
+#endif  // CC_LAYER_ANIMATION_EVENT_OBSERVER_H_