CC Animation: Move PropertyAnimationState and TargetProperty to trees.

cc/animation/property_animation_state.h

-// Copyright 2016 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_PROPERTY_ANIMATION_STATE_H_
-#define CC_ANIMATION_PROPERTY_ANIMATION_STATE_H_
-
-#include "cc/animation/target_property.h"
-#include "cc/base/cc_export.h"
-
-namespace cc {
-
-struct CC_EXPORT PropertyAnimationState {
-  PropertyAnimationState();
-  PropertyAnimationState(const PropertyAnimationState& rhs);
-  ~PropertyAnimationState();
-
-  TargetProperties currently_running;
-  TargetProperties potentially_animating;
-
-  bool operator==(const PropertyAnimationState& other) const;
-  bool operator!=(const PropertyAnimationState& other) const;
-
-  PropertyAnimationState& operator|=(const PropertyAnimationState& other);
-  PropertyAnimationState& operator^=(const PropertyAnimationState& other);
-  PropertyAnimationState& operator&=(const PropertyAnimationState& other);
-
-  bool IsValid() const;
-
-  void Clear();
-};
-
-PropertyAnimationState operator^(const PropertyAnimationState& lhs,
-                                 const PropertyAnimationState& rhs);
-
-}  // namespace cc
-
-#endif  // CC_ANIMATION_PROPERTY_ANIMATION_STATE_H_