cc: Make animations tick regardless of drawing.

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/hash_tables.h"
 #include "base/memory/ref_counted.h"
@@ skipping 34 matching lines @@
 
   // Ensures that the list of active animations on the main thread and the impl
   // thread are kept in sync. This function does not take ownership of the impl
   // thread controller.
   virtual void PushAnimationUpdatesTo(
       LayerAnimationController* controller_impl);
 
   void Animate(double monotonic_time);
   void AccumulatePropertyUpdates(double monotonic_time,
                                  AnimationEventsVector* events);
-  void UpdateState(AnimationEventsVector* events);
+
+  void UpdateState(bool start_ready_animations,
+                   AnimationEventsVector* events);
 
   // Returns the active animation in the given group, animating the given
   // property, if such an animation exists.
   Animation* GetAnimation(int group_id,
                           Animation::TargetProperty target_property) const;
 
   // Returns the active animation animating the given property that is either
   // running, or is next to run, if such an animation exists.
   Animation* GetAnimation(Animation::TargetProperty target_property) const;
 
@@ skipping 79 matching lines @@
   double last_tick_time_;
 
   ObserverList<LayerAnimationValueObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerAnimationController);
 };
 
 }  // namespace cc
 
 #endif  // CC_ANIMATION_LAYER_ANIMATION_CONTROLLER_H_