Support sync mojo IPCs to and from bindings running on a sequence.

chrome/gpu/gpu_arc_video_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 CHROME_GPU_GPU_ARC_VIDEO_SERVICE_H_
 #define CHROME_GPU_GPU_ARC_VIDEO_SERVICE_H_
 
 #include <memory>
 #include <vector>
 
 #include "base/files/scoped_file.h"
 #include "base/macros.h"
+#include "base/threading/thread_checker.h"
 #include "chrome/gpu/arc_video_accelerator.h"
 #include "components/arc/common/video_accelerator.mojom.h"
 #include "components/arc/video_accelerator/video_accelerator.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
 
 namespace chromeos {
 namespace arc {
 
 // GpuArcVideoService manages life-cycle and IPC message translation for
 // ArcVideoAccelerator.
@@ skipping 45 matching lines @@
   std::unique_ptr<ArcVideoAccelerator> accelerator_;
   ::arc::mojom::VideoAcceleratorServiceClientPtr client_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuArcVideoService);
 };
 
 }  // namespace arc
 }  // namespace chromeos
 
 #endif  // CHROME_GPU_GPU_ARC_VIDEO_SERVICE_H_