mus: Split the gpu client-lib into a separate component.

ui/aura/mus/mojo_gpu_memory_buffer_manager.h

-// Copyright 2015 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 UI_AURA_MUS_MOJO_GPU_MEMORY_BUFFER_MANAGER_H_
-#define UI_AURA_MUS_MOJO_GPU_MEMORY_BUFFER_MANAGER_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
-
-namespace aura {
-
-class MojoGpuMemoryBufferManager : public gpu::GpuMemoryBufferManager {
- public:
-  MojoGpuMemoryBufferManager();
-  ~MojoGpuMemoryBufferManager() 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;
-  void SetDestructionSyncToken(gfx::GpuMemoryBuffer* buffer,
-                               const gpu::SyncToken& sync_token) override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(MojoGpuMemoryBufferManager);
-};
-
-}  // namespace aura
-
-#endif  // UI_AURA_MUS_MOJO_GPU_MEMORY_BUFFER_MANAGER_H_