Implement disabling and enabling media tracks

media/mojo/services/mojo_demuxer_stream_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_DEMUXER_STREAM_IMPL_H_
 #define MEDIA_MOJO_SERVICES_MOJO_DEMUXER_STREAM_IMPL_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "media/base/demuxer_stream.h"
@@ skipping 12 matching lines @@
   MojoDemuxerStreamImpl(media::DemuxerStream* stream,
                         mojo::InterfaceRequest<mojom::DemuxerStream> request);
   ~MojoDemuxerStreamImpl() override;
 
   // mojom::DemuxerStream implementation.
   // InitializeCallback and ReadCallback are defined in
   // mojom::DemuxerStream.
   void Initialize(const InitializeCallback& callback) override;
   void Read(const ReadCallback& callback) override;
   void EnableBitstreamConverter() override;
+  void enabled(const enabledCallback& callback) override;
+  void set_enabled(bool enabled, int64_t time_usec) override;
 
  private:
   void OnBufferReady(const ReadCallback& callback,
                      media::DemuxerStream::Status status,
                      const scoped_refptr<media::DecoderBuffer>& buffer);
 
   mojo::StrongBinding<mojom::DemuxerStream> binding_;
 
   // See constructor.  We do not own |stream_|.
   media::DemuxerStream* stream_;
 
   // DataPipe for serializing the data section of DecoderBuffer into.
   mojo::ScopedDataPipeProducerHandle stream_pipe_;
 
   base::WeakPtrFactory<MojoDemuxerStreamImpl> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(MojoDemuxerStreamImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_SERVICES_MOJO_DEMUXER_STREAM_IMPL_H_