Allow to use {FFmpeg/Vpx}VideoDecoder from a UtilityProcess

media/mojo/services/utility_mojo_media_client.h

+// Copyright 2017 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_UTILITY_MOJO_MEDIA_CLIENT_H_
+#define MEDIA_MOJO_SERVICES_UTILITY_MOJO_MEDIA_CLIENT_H_
+
+#include <memory>
+
+#include "media/mojo/services/mojo_media_client.h"
+
+namespace base {
+class SingleThreadTaskRunner;
+}
+
+namespace media {
+
+class VideoDecoder;
+
+// Default MojoMediaClient for MediaService.
+class UtilityMojoMediaClient : public MojoMediaClient {
+ public:
+  UtilityMojoMediaClient();
+  ~UtilityMojoMediaClient() final;
+
+  // MojoMediaClient implementation.
+  void Initialize(service_manager::Connector* connector) final;
+  std::unique_ptr<VideoDecoder> CreateVideoDecoder(
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+      mojom::CommandBufferIdPtr command_buffer_id) final;
+
+  DISALLOW_COPY_AND_ASSIGN(UtilityMojoMediaClient);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_MOJO_SERVICES_UTILITY_MOJO_MEDIA_CLIENT_H_