Use mus::MojoGpuMemoryBufferManager in mus::GpuService.

components/mus/public/cpp/lib/gpu_memory_buffer_manager_mus.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 COMPONENTS_MUS_PUBLIC_CPP_LIB_GPU_MEMORY_BUFFER_MANAGER_MUS_H_
-#define COMPONENTS_MUS_PUBLIC_CPP_LIB_GPU_MEMORY_BUFFER_MANAGER_MUS_H_
-
-#include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
-
-namespace mus {
-
-// A GpuMemoryBufferManager used locally.
-class GpuMemoryBufferManagerMus : public gpu::GpuMemoryBufferManager {
- public:
-  GpuMemoryBufferManagerMus();
-  ~GpuMemoryBufferManagerMus() override;
-
-  // Overridden from gpu::GpuMemoryBufferManager:
-  std::unique_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
-      const gfx::Size& size,
-      gfx::BufferFormat format,
-      gfx::BufferUsage usage,
-      gpu::SurfaceHandle surface_handle) override;
-  std::unique_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBufferFromHandle(
-      const gfx::GpuMemoryBufferHandle& handle,
-      const gfx::Size& size,
-      gfx::BufferFormat format) override;
-  std::unique_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBufferFromClientId(
-      int client_id,
-      const gfx::GpuMemoryBufferId& gpu_memory_buffer_id) override;
-  gfx::GpuMemoryBuffer* GpuMemoryBufferFromClientBuffer(
-      ClientBuffer buffer) override;
-  void SetDestructionSyncToken(gfx::GpuMemoryBuffer* buffer,
-                               const gpu::SyncToken& sync_token) override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferManagerMus);
-};
-
-}  // namespace mus
-
-#endif  // COMPONENTS_MUS_PUBLIC_CPP_LIB_GPU_MEMORY_BUFFER_MANAGER_MUS_H_