Reland of land "media: Refactor MojoMediaClient" with fix.

media/mojo/services/default_mojo_media_client.h

+// Copyright 2014 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_DEFAULT_MOJO_MEDIA_CLIENT_H_
+#define MEDIA_MOJO_SERVICES_DEFAULT_MOJO_MEDIA_CLIENT_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "media/audio/fake_audio_log_factory.h"
+#include "media/mojo/services/mojo_media_client.h"
+
+namespace media {
+
+class AudioHardwareConfig;
+class AudioRendererSink;
+class VideoRendererSink;
+
+// Default MojoMediaClient for MojoMediaApplication.
+class DefaultMojoMediaClient : public MojoMediaClient {
+ public:
+  DefaultMojoMediaClient();
+  ~DefaultMojoMediaClient() final;
+
+  // MojoMediaClient implementation.
+  void Initialize() final;
+  scoped_ptr<RendererFactory> CreateRendererFactory(
+      const scoped_refptr<MediaLog>& media_log) final;
+  AudioRendererSink* CreateAudioRendererSink() final;
+  VideoRendererSink* CreateVideoRendererSink(
+      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner) final;
+  scoped_ptr<CdmFactory> CreateCdmFactory(
+      mojo::shell::mojom::InterfaceProvider* /* service_provider */) final;
+
+ private:
+  FakeAudioLogFactory fake_audio_log_factory_;
+  scoped_ptr<AudioHardwareConfig> audio_hardware_config_;
+  scoped_refptr<AudioRendererSink> audio_renderer_sink_;
+  scoped_ptr<VideoRendererSink> video_renderer_sink_;
+
+  DISALLOW_COPY_AND_ASSIGN(DefaultMojoMediaClient);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_MOJO_SERVICES_DEFAULT_MOJO_MEDIA_CLIENT_H_