compositor-worker: blink->cc plumbing

cc/trees/layer_tree_host.h

 // Copyright 2011 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_LAYER_TREE_HOST_H_
 #define CC_TREES_LAYER_TREE_HOST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 43 matching lines @@
 
 class AnimationEvents;
 class AnimationRegistrar;
 class AnimationHost;
 class BeginFrameSource;
 class HeadsUpDisplayLayer;
 class Layer;
 class LayerTreeHostImpl;
 class LayerTreeHostImplClient;
 class LayerTreeHostSingleThreadClient;
+class LayerTreeMutator;
 class PropertyTrees;
 class Region;
 class RenderingStatsInstrumentation;
 class ResourceProvider;
 class ResourceUpdateQueue;
 class SharedBitmapManager;
 class TaskGraphRunner;
 class TopControlsManager;
 class UIResourceRequest;
 struct PendingPageScaleAnimation;
@@ skipping 249 matching lines @@
 
   PropertyTrees* property_trees() { return &property_trees_; }
   bool needs_meta_info_recomputation() {
     return needs_meta_info_recomputation_;
   }
 
   void RecordFrameTimingEvents(
       scoped_ptr<FrameTimingTracker::CompositeTimingSet> composite_events,
       scoped_ptr<FrameTimingTracker::MainFrameTimingSet> main_frame_events);
 
+  void SetLayerTreeMutator(LayerTreeMutator* mutator);
+
   Layer* LayerById(int id) const;
   void RegisterLayer(Layer* layer);
   void UnregisterLayer(Layer* layer);
   // LayerTreeMutatorsClient implementation.
   bool IsLayerInTree(int layer_id, LayerTreeType tree_type) const override;
   void SetMutatorsNeedCommit() override;
   void SetMutatorsNeedRebuildPropertyTrees() override;
   void SetLayerFilterMutated(int layer_id,
                              LayerTreeType tree_type,
                              const FilterOperations& filters) override;
@@ skipping 196 matching lines @@
 
   uint32_t surface_id_namespace_;
   uint32_t next_surface_sequence_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_