CC Animations: Port Impl-only-scrolling to use compositor animation timelines.

cc/trees/mutator_host_client.h

 // Copyright 2015 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_TREES_MUTATOR_HOST_CLIENT_H_
 #define CC_TREES_MUTATOR_HOST_CLIENT_H_
 
+#include "cc/base/cc_export.h"
+
 namespace gfx {
 class Transform;
 class ScrollOffset;
 }
 
 namespace cc {
 
 class FilterOperations;
 class Layer;
 
 enum class LayerTreeType { ACTIVE, PENDING };
 
-class MutatorHostClient {
+class CC_EXPORT MutatorHostClient {
  public:
   virtual bool IsLayerInTree(int layer_id, LayerTreeType tree_type) const = 0;
   virtual void SetMutatorsNeedCommit() = 0;
 
   virtual void SetLayerFilterMutated(int layer_id,
                                      LayerTreeType tree_type,
                                      const FilterOperations& filters) = 0;
   virtual void SetLayerOpacityMutated(int layer_id,
                                       LayerTreeType tree_type,
                                       float opacity) = 0;
   virtual void SetLayerTransformMutated(int layer_id,
                                         LayerTreeType tree_type,
                                         const gfx::Transform& transform) = 0;
   virtual void SetLayerScrollOffsetMutated(
       int layer_id,
       LayerTreeType tree_type,
       const gfx::ScrollOffset& scroll_offset) = 0;
+
+  virtual void ScrollOffsetAnimationFinished() {}

[ajuma, 2015/07/06 17:41:00]

This should be pure virtual like the other methods here.

[loyso (OOO), 2015/07/07 04:14:38]

Done.

+  virtual gfx::ScrollOffset GetScrollOffsetForAnimation(int layer_id) const = 0;
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_MUTATOR_HOST_CLIENT_H_