Example MojoVideoDecoder decoder using the command buffer.

media/mojo/services/gpu_mojo_media_client.h

Index: media/mojo/services/gpu_mojo_media_client.h
diff --git a/media/mojo/services/gpu_mojo_media_client.h b/media/mojo/services/gpu_mojo_media_client.h
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+// 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 MEDIA_MOJO_SERVICES_GPU_MOJO_MEDIA_CLIENT_H_
+#define MEDIA_MOJO_SERVICES_GPU_MOJO_MEDIA_CLIENT_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/single_thread_task_runner.h"
+#include "media/mojo/services/mojo_media_client.h"
+
+namespace media {
+
+class MediaGpuChannelManager;
+
+class GpuMojoMediaClient : public MojoMediaClient {
+ public:
+  // |media_gpu_channel_manager| must only be used on |gpu_task_runner|, which
+  // is expected to be the GPU main thread task runner.
+  GpuMojoMediaClient(
+      scoped_refptr<base::SingleThreadTaskRunner> gpu_task_runner,
+      base::WeakPtr<MediaGpuChannelManager> media_gpu_channel_manager);
+  ~GpuMojoMediaClient() final;
+
+  // MojoMediaClient implementation.
+  std::unique_ptr<AudioDecoder> CreateAudioDecoder(
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner) final;
+  std::unique_ptr<VideoDecoder> CreateVideoDecoder(
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+      mojom::CommandBufferIdPtr command_buffer_id) final;
+  std::unique_ptr<CdmFactory> CreateCdmFactory(
+      service_manager::mojom::InterfaceProvider* interface_provider) final;
+
+ private:
+  scoped_refptr<base::SingleThreadTaskRunner> gpu_task_runner_;
+  base::WeakPtr<MediaGpuChannelManager> media_gpu_channel_manager_;
+
+  DISALLOW_COPY_AND_ASSIGN(GpuMojoMediaClient);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_MOJO_SERVICES_GPU_MOJO_MEDIA_CLIENT_H_