Implement disabling and enabling media tracks

chromecast/renderer/media/cma_renderer.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 CHROMECAST_RENDERER_MEDIA_CMA_RENDERER_H_
 #define CHROMECAST_RENDERER_MEDIA_CMA_RENDERER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 31 matching lines @@
               ::media::VideoRendererSink* video_renderer_sink,
               ::media::GpuVideoAcceleratorFactories* gpu_factories);
   ~CmaRenderer() override;
 
   // ::media::Renderer implementation:
   void Initialize(::media::DemuxerStreamProvider* demuxer_stream_provider,
                   ::media::RendererClient* client,
                   const ::media::PipelineStatusCB& init_cb) override;
   void Flush(const base::Closure& flush_cb) override;
   void StartPlayingFrom(base::TimeDelta time) override;
+  void RestartStreamPlayback(::media::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;
   void SetCdm(::media::CdmContext* cdm_context,
               const ::media::CdmAttachedCB& cdm_attached_cb) override;
 
  private:
   enum State {
@@ skipping 78 matching lines @@
   base::WeakPtr<CmaRenderer> weak_this_;
   base::WeakPtrFactory<CmaRenderer> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CmaRenderer);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_RENDERER_MEDIA_CMA_RENDERER_H_