CC Animation: Make cc/animation an independent GN component.

cc/animation/scroll_offset_animations.h

 // Copyright (c) 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_SCROLL_OFFSET_ANIMATIONS_H_
 #define CC_ANIMATION_SCROLL_OFFSET_ANIMATIONS_H_
 
 #include <unordered_map>
 
 #include "cc/animation/scroll_offset_animations_impl.h"
 #include "cc/trees/mutator_host_client.h"
 
 namespace cc {
 
 // A ScrollOffsetAnimationUpdate represents a change on the main thread
 // that may impact an impl-only scroll offset animation.
 // Note that this class only exists on the main thread.
-struct CC_EXPORT ScrollOffsetAnimationUpdate {
+struct CC_ANIMATION_EXPORT ScrollOffsetAnimationUpdate {
   ScrollOffsetAnimationUpdate();
   explicit ScrollOffsetAnimationUpdate(ElementId);
 
   // The element to which this update applies.
   ElementId element_id_;
 
   // The amount by which the scroll offset is changed on the main thread.
   gfx::Vector2dF adjustment_;
 
   // If set to true, abort the currently running impl only scroll offset
   // animation running on cc and finish it on the main thread.
   bool takeover_;
 };
 
 // ScrollOffsetAnimations contains a list of ScrollOffsetAnimationUpdates.
 // PushPropertiesTo is called during commit time and the necessary update is
 // made to the impl-only animation.
-class CC_EXPORT ScrollOffsetAnimations {
+class CC_ANIMATION_EXPORT ScrollOffsetAnimations {
  public:
   explicit ScrollOffsetAnimations(AnimationHost* animation_host);
   ~ScrollOffsetAnimations();
 
   void AddAdjustmentUpdate(ElementId, gfx::Vector2dF adjustment);
   void AddTakeoverUpdate(ElementId);
 
   bool HasUpdatesForTesting() const;
 
   // Goes through the updates in the order in which they're added and calls the
   // appropriate handler for each update.
   void PushPropertiesTo(ScrollOffsetAnimationsImpl*);
 
  private:
   ScrollOffsetAnimationUpdate GetUpdateForElementId(ElementId) const;
 
   using ElementToUpdateMap =
       std::unordered_map<ElementId, ScrollOffsetAnimationUpdate, ElementIdHash>;
   ElementToUpdateMap element_to_update_map_;
 
   AnimationHost* animation_host_;
 };
 
 }  // namespace cc
 
 #endif  // CC_ANIMATION_SCROLL_OFFSET_ANIMATIONS_H_