Implement disabling and enabling media tracks

chromecast/media/cma/base/demuxer_stream_for_test.h

 // Copyright 2015 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_MEDIA_CMA_BASE_DEMUXER_STREAM_FOR_TEST_H_
 #define CHROMECAST_MEDIA_CMA_BASE_DEMUXER_STREAM_FOR_TEST_H_
 
 #include <list>
 
 #include "base/bind.h"
@@ skipping 29 matching lines @@
                        const std::list<int>& config_idx);
   ~DemuxerStreamForTest() override;
 
   // ::media::DemuxerStream implementation.
   void Read(const ReadCB& read_cb) override;
   ::media::AudioDecoderConfig audio_decoder_config() override;
   ::media::VideoDecoderConfig video_decoder_config() override;
   Type type() const override;
   bool SupportsConfigChanges() override;
   ::media::VideoRotation video_rotation() override;
+  bool enabled() const override;
+  void set_enabled(bool enabled, base::TimeDelta time) override;
+  void SetStreamRestartedCB(const StreamRestartedCB& cb) override;
 
   bool has_pending_read() const { return has_pending_read_; }
 
   // Frame duration
   static const int kDemuxerStreamForTestFrameDuration = 40;
 
  private:
   void DoRead(const ReadCB& read_cb);
 
   // Demuxer configuration.
   int total_frame_count_;
   const int cycle_count_;
   const int delayed_frame_count_;
   std::list<int> config_idx_;
 
   // Number of frames sent so far.
   int frame_count_;
 
   bool has_pending_read_;
 
   DISALLOW_COPY_AND_ASSIGN(DemuxerStreamForTest);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_BASE_DEMUXER_STREAM_FOR_TEST_H_