Impl mus::mojom::GpuService to enable using Chrome IPC version gpu CmdBuf in mus

components/mus/public/cpp/lib/gpu_memory_buffer_manager_mus.cc

 // 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.
 
-#include "components/mus/surfaces/ozone_gpu_memory_buffer_manager.h"
-
-#include "components/mus/gles2/ozone_gpu_memory_buffer.h"
-#include "gpu/command_buffer/common/gpu_memory_buffer_support.h"
-#include "ui/gfx/buffer_types.h"
+#include "components/mus/public/cpp/lib/gpu_memory_buffer_manager_mus.h"
 
 namespace mus {
 
-OzoneGpuMemoryBufferManager::OzoneGpuMemoryBufferManager() {}
+GpuMemoryBufferManagerMus::GpuMemoryBufferManagerMus() {}
 
-OzoneGpuMemoryBufferManager::~OzoneGpuMemoryBufferManager() {}
+GpuMemoryBufferManagerMus::~GpuMemoryBufferManagerMus() {}
 
 std::unique_ptr<gfx::GpuMemoryBuffer>
-OzoneGpuMemoryBufferManager::AllocateGpuMemoryBuffer(
+GpuMemoryBufferManagerMus::AllocateGpuMemoryBuffer(
     const gfx::Size& size,
     gfx::BufferFormat format,
     gfx::BufferUsage usage,
     gpu::SurfaceHandle surface_handle) {
-  return OzoneGpuMemoryBuffer::CreateOzoneGpuMemoryBuffer(
-      size, format, gfx::BufferUsage::SCANOUT, surface_handle);
+  NOTIMPLEMENTED();
+  return std::unique_ptr<gfx::GpuMemoryBuffer>();
 }
 
 std::unique_ptr<gfx::GpuMemoryBuffer>
-OzoneGpuMemoryBufferManager::CreateGpuMemoryBufferFromHandle(
+GpuMemoryBufferManagerMus::CreateGpuMemoryBufferFromHandle(
     const gfx::GpuMemoryBufferHandle& handle,
     const gfx::Size& size,
     gfx::BufferFormat format) {
   NOTIMPLEMENTED();
-  return nullptr;
+  return std::unique_ptr<gfx::GpuMemoryBuffer>();
 }
 
 std::unique_ptr<gfx::GpuMemoryBuffer>
-OzoneGpuMemoryBufferManager::CreateGpuMemoryBufferFromClientId(
+GpuMemoryBufferManagerMus::CreateGpuMemoryBufferFromClientId(
     int client_id,
     const gfx::GpuMemoryBufferId& gpu_memory_buffer_id) {
   NOTIMPLEMENTED();
-  return nullptr;
+  return std::unique_ptr<gfx::GpuMemoryBuffer>();
 }
 
 gfx::GpuMemoryBuffer*
-OzoneGpuMemoryBufferManager::GpuMemoryBufferFromClientBuffer(
+GpuMemoryBufferManagerMus::GpuMemoryBufferFromClientBuffer(
     ClientBuffer buffer) {
   NOTIMPLEMENTED();
   return nullptr;
 }
 
-void OzoneGpuMemoryBufferManager::SetDestructionSyncToken(
+void GpuMemoryBufferManagerMus::SetDestructionSyncToken(
     gfx::GpuMemoryBuffer* buffer,
     const gpu::SyncToken& sync_token) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace mus