Revert of services/ui: Revert CLs that broke Windows.

services/ui/gles2/gpu_state.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 SERVICES_UI_GLES2_GPU_STATE_H_
-#define SERVICES_UI_GLES2_GPU_STATE_H_
-
-#include <memory>
-
-#include "base/memory/ref_counted.h"
-#include "base/single_thread_task_runner.h"
-#include "base/threading/thread.h"
-#include "gpu/command_buffer/service/gpu_preferences.h"
-#include "gpu/command_buffer/service/mailbox_manager_impl.h"
-#include "gpu/command_buffer/service/sync_point_manager.h"
-#include "gpu/config/gpu_driver_bug_workarounds.h"
-#include "gpu/config/gpu_info.h"
-#include "services/ui/gles2/command_buffer_driver_manager.h"
-#include "services/ui/gles2/command_buffer_task_runner.h"
-#include "ui/gl/gl_share_group.h"
-
-namespace {
-class WaitableEvent;
-}
-
-namespace ui {
-
-// We need to share these across all CommandBuffer instances so that contexts
-// they create can share resources with each other via mailboxes.
-class GpuState : public base::RefCountedThreadSafe<GpuState> {
- public:
-  GpuState();
-
-  // We run the CommandBufferImpl on the control_task_runner, which forwards
-  // most method class to the CommandBufferDriver, which runs on the "driver",
-  // thread (i.e., the thread on which GpuImpl instances are created).
-  scoped_refptr<base::SingleThreadTaskRunner> control_task_runner() {
-    return control_thread_task_runner_;
-  }
-
-  void StopThreads();
-
-  const gpu::GpuPreferences& gpu_preferences() const {
-    return gpu_preferences_;
-  }
-
-  const gpu::GpuDriverBugWorkarounds& gpu_driver_bug_workarounds() const {
-    return gpu_driver_bug_workarounds_;
-  }
-
-  CommandBufferTaskRunner* command_buffer_task_runner() const {
-    return command_buffer_task_runner_.get();
-  }
-
-  CommandBufferDriverManager* driver_manager() const {
-    return driver_manager_.get();
-  }
-
-  // These objects are intended to be used on the "driver" thread (i.e., the
-  // thread on which GpuImpl instances are created).
-  gl::GLShareGroup* share_group() const { return share_group_.get(); }
-  gpu::gles2::MailboxManager* mailbox_manager() const {
-    return mailbox_manager_.get();
-  }
-  gpu::SyncPointManager* sync_point_manager() const {
-    return sync_point_manager_.get();
-  }
-
-  const gpu::GPUInfo& gpu_info() const {
-    return gpu_info_;
-  }
-
-  bool HardwareRenderingAvailable() const {
-    return hardware_rendering_available_;
-  }
-
- private:
-  friend class base::RefCountedThreadSafe<GpuState>;
-  ~GpuState();
-
-  void InitializeOnGpuThread(base::WaitableEvent* event);
-
-  void DestroyGpuSpecificStateOnGpuThread();
-
-  // |gpu_thread_| is for executing OS GL calls.
-  base::Thread gpu_thread_;
-  // |control_thread_| is for mojo incoming calls of CommandBufferImpl.
-  base::Thread control_thread_;
-
-  // Same as control_thread_->task_runner(). The TaskRunner is cached as it may
-  // be needed during shutdown.
-  scoped_refptr<base::SingleThreadTaskRunner> control_thread_task_runner_;
-
-  gpu::GpuPreferences gpu_preferences_;
-  const gpu::GpuDriverBugWorkarounds gpu_driver_bug_workarounds_;
-  scoped_refptr<CommandBufferTaskRunner> command_buffer_task_runner_;
-  std::unique_ptr<CommandBufferDriverManager> driver_manager_;
-  std::unique_ptr<gpu::SyncPointManager> sync_point_manager_;
-  scoped_refptr<gl::GLShareGroup> share_group_;
-  scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_;
-  gpu::GPUInfo gpu_info_;
-  bool hardware_rendering_available_;
-};
-
-}  // namespace ui
-
-#endif  // SERVICES_UI_GLES2_GPU_STATE_H_