gpu: Use GpuMemoryBufferManager from GpuService when possible.

content/browser/gpu/browser_gpu_channel_host_factory.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_
 #define CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 31 matching lines @@
 
   // Used to skip GpuChannelHost tests when there can be no GPU process.
   static bool CanUseForTesting();
 
   // Overridden from gpu::GpuChannelEstablishFactory:
   // The factory will return a null GpuChannelHost in the callback during
   // shutdown.
   void EstablishGpuChannel(
       const gpu::GpuChannelEstablishedCallback& callback) override;
   scoped_refptr<gpu::GpuChannelHost> EstablishGpuChannelSync() override;
+  gpu::GpuMemoryBufferManager* GetGpuMemoryBufferManager() override;
 
  private:
   struct CreateRequest;
   class EstablishRequest;
 
   BrowserGpuChannelHostFactory();
   ~BrowserGpuChannelHostFactory() override;
 
   void GpuChannelEstablished();
 
@@ skipping 12 matching lines @@
   std::vector<gpu::GpuChannelEstablishedCallback> established_callbacks_;
 
   static BrowserGpuChannelHostFactory* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserGpuChannelHostFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_