services/ui: Move some files into the client lib.

services/ui/common/gpu_service.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_COMMON_GPU_SERVICE_H_
-#define SERVICES_UI_COMMON_GPU_SERVICE_H_
-
-#include <stdint.h>
-#include <vector>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/single_thread_task_runner.h"
-#include "base/synchronization/lock.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/threading/thread.h"
-#include "gpu/ipc/client/gpu_channel_host.h"
-#include "services/ui/common/mojo_gpu_memory_buffer_manager.h"
-#include "services/ui/common/mus_common_export.h"
-#include "services/ui/public/interfaces/gpu_service.mojom.h"
-
-namespace shell {
-class Connector;
-}
-
-namespace ui {
-
-class MUS_COMMON_EXPORT GpuService : public gpu::GpuChannelHostFactory {
- public:
-  void EstablishGpuChannel(const base::Closure& callback);
-  scoped_refptr<gpu::GpuChannelHost> EstablishGpuChannelSync();
-  scoped_refptr<gpu::GpuChannelHost> GetGpuChannel();
-  gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager() const {
-    return gpu_memory_buffer_manager_.get();
-  }
-
-  // The GpuService has to be initialized in the main thread before establishing
-  // the gpu channel.
-  static void Initialize(shell::Connector* connector);
-  // The GpuService has to be terminated in the main thread.
-  static void Terminate();
-  static GpuService* GetInstance();
-
- private:
-  friend struct base::DefaultSingletonTraits<GpuService>;
-
-  explicit GpuService(shell::Connector* connector);
-  ~GpuService() override;
-
-  scoped_refptr<gpu::GpuChannelHost> GetGpuChannelLocked();
-  void EstablishGpuChannelOnMainThread();
-  void EstablishGpuChannelOnMainThreadSyncLocked();
-  void EstablishGpuChannelOnMainThreadDone(
-      bool locked,
-      int client_id,
-      mojom::ChannelHandlePtr channel_handle,
-      mojom::GpuInfoPtr gpu_info);
-
-  // gpu::GpuChannelHostFactory overrides:
-  bool IsMainThread() override;
-  scoped_refptr<base::SingleThreadTaskRunner> GetIOThreadTaskRunner() override;
-  std::unique_ptr<base::SharedMemory> AllocateSharedMemory(
-      size_t size) override;
-
-  scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
-  shell::Connector* connector_;
-  base::WaitableEvent shutdown_event_;
-  base::Thread io_thread_;
-  std::unique_ptr<MojoGpuMemoryBufferManager> gpu_memory_buffer_manager_;
-
-  // Lock for |gpu_channel_|, |establish_callbacks_| & |is_establishing_|.
-  base::Lock lock_;
-  bool is_establishing_;
-  ui::mojom::GpuServicePtr gpu_service_;
-  scoped_refptr<gpu::GpuChannelHost> gpu_channel_;
-  std::vector<base::Closure> establish_callbacks_;
-  base::ConditionVariable establishing_condition_;
-
-  DISALLOW_COPY_AND_ASSIGN(GpuService);
-};
-
-}  // namespace ui
-
-#endif  // COMPONENTS_MUS_PUBLIC_CPP_LIB_GPU_SERVICE_CONNECTION_H_