cc: Remove the software compositing bool from PrepareTextureMailbox

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 219 matching lines @@
   // resource, which is always positive.
   virtual UIResourceId CreateUIResource(UIResourceClient* client);
   // Deletes a UI resource.  May safely be called more than once.
   virtual void DeleteUIResource(UIResourceId id);
   // Put the recreation of all UI resources into the resource queue after they
   // were evicted on the impl thread.
   void RecreateUIResources();
 
   virtual gfx::Size GetUIResourceSize(UIResourceId id) const;
 
-  bool UsingSharedMemoryResources();
   int id() const { return id_; }
 
   // Returns the id of the benchmark on success, 0 otherwise.
   int ScheduleMicroBenchmark(const std::string& benchmark_name,
                              std::unique_ptr<base::Value> value,
                              const MicroBenchmark::DoneCallback& callback);
   // Returns true if the message was successfully delivered and handled.
   bool SendMessageToMicroBenchmark(int id, std::unique_ptr<base::Value> value);
 
   // When a SwapPromiseMonitor is created on the main thread, it calls
@@ skipping 194 matching lines @@
   uint32_t surface_client_id_;
   uint32_t next_surface_sequence_;
   uint32_t num_consecutive_frames_suitable_for_gpu_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_