Allow muting/unmuting audio through media track API

media/base/mock_filters.h

 // Copyright (c) 2012 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_BASE_MOCK_FILTERS_H_
 #define MEDIA_BASE_MOCK_FILTERS_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 97 matching lines @@
                void(DemuxerHost* host, const PipelineStatusCB& cb, bool));
   MOCK_METHOD1(StartWaitingForSeek, void(base::TimeDelta));
   MOCK_METHOD1(CancelPendingSeek, void(base::TimeDelta));
   MOCK_METHOD2(Seek, void(base::TimeDelta time, const PipelineStatusCB& cb));
   MOCK_METHOD0(Stop, void());
   MOCK_METHOD1(GetStream, DemuxerStream*(DemuxerStream::Type));
   MOCK_CONST_METHOD0(GetStartTime, base::TimeDelta());
   MOCK_CONST_METHOD0(GetTimelineOffset, base::Time());
   MOCK_CONST_METHOD0(GetMemoryUsage, int64_t());
 
+  MOCK_METHOD2(OnTrackIdAssigned, void(unsigned, const MediaTrack*));
+  MOCK_CONST_METHOD1(GetDemuxerStreamByTrackId, const DemuxerStream*(unsigned));
+
  private:
   DISALLOW_COPY_AND_ASSIGN(MockDemuxer);
 };
 
 class MockDemuxerStream : public DemuxerStream {
  public:
   explicit MockDemuxerStream(DemuxerStream::Type type);
   virtual ~MockDemuxerStream();
 
   // DemuxerStream implementation.
@@ skipping 213 matching lines @@
   MOCK_METHOD0(GetDecryptor, Decryptor*());
   int GetCdmId() const override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockCdmContext);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_MOCK_FILTERS_H_