Don't PushProperties every commit for animating layers

cc/animation/layer_animation_controller.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_ANIMATION_LAYER_ANIMATION_CONTROLLER_H_
 #define CC_ANIMATION_LAYER_ANIMATION_CONTROLLER_H_
 
 #include "base/basictypes.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/ref_counted.h"
@@ skipping 61 matching lines @@
   bool HasActiveAnimation() const;
 
   // Returns true if there are any animations at all to process.
   bool has_any_animation() const { return !active_animations_.empty(); }
 
   // Returns true if there is an animation currently animating the given
   // property, or if there is an animation scheduled to animate this property in
   // the future.
   bool IsAnimatingProperty(Animation::TargetProperty target_property) const;
 
-  // If a sync is forced, then the next time animation updates are pushed to the
-  // impl thread, all animations will be transferred.
-  void set_force_sync() { force_sync_ = true; }
-
   void SetAnimationRegistrar(AnimationRegistrar* registrar);
   AnimationRegistrar* animation_registrar() { return registrar_; }
 
   void NotifyAnimationStarted(const AnimationEvent& event,
                               double wall_clock_time);
   void NotifyAnimationFinished(const AnimationEvent& event,
                                double wall_clock_time);
   void NotifyAnimationAborted(const AnimationEvent& event);
   void NotifyAnimationPropertyUpdate(const AnimationEvent& event);
 
@@ skipping 17 matching lines @@
 
  private:
   typedef base::hash_set<int> TargetProperties;
 
   void PushNewAnimationsToImplThread(
       LayerAnimationController* controller_impl) const;
   void RemoveAnimationsCompletedOnMainThread(
       LayerAnimationController* controller_impl) const;
   void PushPropertiesToImplThread(
       LayerAnimationController* controller_impl) const;
-  void ReplaceImplThreadAnimations(
-      LayerAnimationController* controller_impl) const;
 
   void StartAnimationsWaitingForNextTick(double monotonic_time);
   void StartAnimationsWaitingForStartTime(double monotonic_time);
   void StartAnimationsWaitingForTargetAvailability(double monotonic_time);
   void ResolveConflicts(double monotonic_time);
   void PromoteStartedAnimations(double monotonic_time,
                                 AnimationEventsVector* events);
   void MarkFinishedAnimations(double monotonic_time);
   void MarkAnimationsForDeletion(double monotonic_time,
                                  AnimationEventsVector* events);
   void PurgeAnimationsMarkedForDeletion();
 
   void TickAnimations(double monotonic_time);
 
   enum UpdateActivationType {
     NormalActivation,
     ForceActivation
   };
   void UpdateActivation(UpdateActivationType type);
 
   void NotifyObserversOpacityAnimated(float opacity);
   void NotifyObserversTransformAnimated(const gfx::Transform& transform);
   void NotifyObserversFilterAnimated(const FilterOperations& filter);
 
+  void NotifyObserversAnimationWaitingForDeletion();
+
   bool HasValueObserver();
   bool HasActiveValueObserver();
 
-  // If this is true, we force a sync to the impl thread.
-  bool force_sync_;
-
   AnimationRegistrar* registrar_;
   int id_;
   ScopedPtrVector<Animation> active_animations_;
 
   // This is used to ensure that we don't spam the registrar.
   bool is_active_;
 
   double last_tick_time_;
 
   ObserverList<LayerAnimationValueObserver> value_observers_;
   ObserverList<LayerAnimationEventObserver> event_observers_;
 
   AnimationDelegate* layer_animation_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerAnimationController);
 };
 
 }  // namespace cc
 
 #endif  // CC_ANIMATION_LAYER_ANIMATION_CONTROLLER_H_