exp/wip: Use ServerGpuMemoryBufferManager in browser.

services/ui/ws/gpu_host.h

 // Copyright 2016 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 SERVICES_UI_WS_GPU_HOST_H_
 #define SERVICES_UI_WS_GPU_HOST_H_
 
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
@@ skipping 77 matching lines @@
   void RecordLogMessage(int32_t severity,
                         const std::string& header,
                         const std::string& message) override;
 
   GpuHostDelegate* const delegate_;
   int32_t next_client_id_;
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
   mojom::GpuServicePtr gpu_service_;
   mojo::Binding<mojom::GpuHost> gpu_host_binding_;
   gpu::GPUInfo gpu_info_;
-  std::unique_ptr<viz::ServerGpuMemoryBufferManager> gpu_memory_buffer_manager_;
+  scoped_refptr<viz::ServerGpuMemoryBufferManager> gpu_memory_buffer_manager_;
 
   mojom::GpuMainPtr gpu_main_;
 
   // TODO(fsamuel): GpuHost should not be holding onto |gpu_main_impl|
   // because that will live in another process soon.
   std::unique_ptr<GpuMain> gpu_main_impl_;
 
   mojo::StrongBindingSet<mojom::Gpu> gpu_bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultGpuHost);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_GPU_HOST_H_