Implement disabling and enabling media tracks

media/mojo/services/mojo_renderer_impl.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_MOJO_RENDERER_IMPL_H_
 #define MEDIA_MOJO_SERVICES_MOJO_RENDERER_IMPL_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 31 matching lines @@
   ~MojoRendererImpl() override;
 
   // Renderer implementation.
   void Initialize(DemuxerStreamProvider* demuxer_stream_provider,
                   media::RendererClient* client,
                   const PipelineStatusCB& init_cb) override;
   void SetCdm(CdmContext* cdm_context,
               const CdmAttachedCB& cdm_attached_cb) override;
   void Flush(const base::Closure& flush_cb) override;
   void StartPlayingFrom(base::TimeDelta time) override;
+  void RestartStreamPlayback(DemuxerStream* stream,
+                             base::TimeDelta time) override;
   void SetPlaybackRate(double playback_rate) override;
   void SetVolume(float volume) override;
   base::TimeDelta GetMediaTime() override;
   bool HasAudio() override;
   bool HasVideo() override;
 
  private:
   // mojom::RendererClient implementation, dispatched on the
   // |task_runner_|.
   void OnTimeUpdate(int64_t time_usec, int64_t max_time_usec) override;
@@ skipping 46 matching lines @@
   // Lock used to serialize access for |time_|.
   mutable base::Lock lock_;
   base::TimeDelta time_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoRendererImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_SERVICES_MOJO_RENDERER_IMPL_H_