cc: Make LayerTreeHost a protected Layer member.

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 227 matching lines @@
 
   // Deserializes the protobuf into this LayerTreeHost before a commit. The
   // expected input is a serialized remote LayerTreeHost. After deserializing
   // the protobuf, the normal commit-flow should continue.
   void FromProtobufForCommit(const proto::LayerTreeHost& proto);
 
   bool IsSingleThreaded() const;
   bool IsThreaded() const;
   bool IsRemoteServer() const;
   bool IsRemoteClient() const;
-  void BuildPropertyTreesForTesting();
 
   ImageSerializationProcessor* image_serialization_processor() const {
     return image_serialization_processor_;
   }
 
   EnginePictureCache* engine_picture_cache() const {
     return engine_picture_cache_ ? engine_picture_cache_.get() : nullptr;
   }
 
   ClientPictureCache* client_picture_cache() const {
@@ skipping 125 matching lines @@
 
   SurfaceSequenceGenerator surface_sequence_generator_;
   uint32_t num_consecutive_frames_suitable_for_gpu_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_