CC Animation: Expose TargetProperty enum to be aliased in Blink Platform.

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 <unordered_set>
 #include <vector>
 
@@ skipping 29 matching lines @@
   enum class ObserverType { ACTIVE, PENDING };
 
   static scoped_refptr<LayerAnimationController> Create(int id);
 
   int id() const { return id_; }
 
   void AddAnimation(scoped_ptr<Animation> animation);
   void PauseAnimation(int animation_id, base::TimeDelta time_offset);
   void RemoveAnimation(int animation_id);
   void AbortAnimation(int animation_id);
-  void AbortAnimations(Animation::TargetProperty target_property);
+  void AbortAnimations(AnimationTargetProperty target_property);
 
   // 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. This method is virtual for testing.
   virtual void PushAnimationUpdatesTo(
       LayerAnimationController* controller_impl);
 
   void Animate(base::TimeTicks monotonic_time);
   void AccumulatePropertyUpdates(base::TimeTicks monotonic_time,
                                  AnimationEvents* events);
 
   void UpdateState(bool start_ready_animations, AnimationEvents* events);
 
   // Make animations affect active observers if and only if they affect
   // pending observers. Any animations that no longer affect any observers
   // are deleted.
   void ActivateAnimations();
 
   // 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;
+  Animation* GetAnimation(AnimationTargetProperty target_property) const;
 
   // Returns the active animation for the given unique animation id.
   Animation* GetAnimationById(int animation_id) const;
 
   // Returns true if there are any animations that have neither finished nor
   // aborted.
   bool HasActiveAnimation() const;
 
   // Returns true if there are any animations at all to process.
   bool has_any_animation() const { return !animations_.empty(); }
 
   // Returns true if there is an animation that is either currently animating
   // the given property or scheduled to animate this property in the future, and
   // that affects the given observer type.
-  bool IsPotentiallyAnimatingProperty(Animation::TargetProperty target_property,
+  bool IsPotentiallyAnimatingProperty(AnimationTargetProperty target_property,
                                       ObserverType observer_type) const;
 
   // Returns true if there is an animation that is currently animating the given
   // property and that affects the given observer type.
-  bool IsCurrentlyAnimatingProperty(Animation::TargetProperty target_property,
+  bool IsCurrentlyAnimatingProperty(AnimationTargetProperty target_property,
                                     ObserverType observer_type) const;
 
   void SetAnimationRegistrar(AnimationRegistrar* registrar);
   AnimationRegistrar* animation_registrar() { return registrar_; }
 
   void NotifyAnimationStarted(const AnimationEvent& event);
   void NotifyAnimationFinished(const AnimationEvent& event);
   void NotifyAnimationAborted(const AnimationEvent& event);
   void NotifyAnimationPropertyUpdate(const AnimationEvent& event);
 
@@ skipping 66 matching lines @@
     return needs_to_start_animations_;
   }
 
  protected:
   friend class base::RefCounted<LayerAnimationController>;
 
   explicit LayerAnimationController(int id);
   virtual ~LayerAnimationController();
 
  private:
-  using TargetProperties = std::unordered_set<int>;
+  using TargetProperties =
+      std::unordered_set<AnimationTargetProperty, EnumClassHash>;

[esprehn, 2016/02/17 00:40:11]

This could just be a bitset right? there's like 5 properties?

 
   void PushNewAnimationsToImplThread(
       LayerAnimationController* controller_impl) const;
   void MarkAbortedAnimationsForDeletion(
       LayerAnimationController* controller_impl) const;
   void RemoveAnimationsCompletedOnMainThread(
       LayerAnimationController* controller_impl) const;
   void PushPropertiesToImplThread(LayerAnimationController* controller_impl);
 
   void StartAnimations(base::TimeTicks monotonic_time);
@@ skipping 58 matching lines @@
 
   bool potentially_animating_transform_for_active_observers_;
   bool potentially_animating_transform_for_pending_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerAnimationController);
 };
 
 }  // namespace cc
 
 #endif  // CC_ANIMATION_LAYER_ANIMATION_CONTROLLER_H_