Implement disabling and enabling media tracks

chromecast/media/cma/base/demuxer_stream_for_test.cc

 // 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.
 
 #include "chromecast/media/cma/base/demuxer_stream_for_test.h"
 
 #include "base/threading/thread.h"
 #include "media/base/media_util.h"
 
 namespace chromecast {
@@ skipping 60 matching lines @@
 }
 
 bool DemuxerStreamForTest::SupportsConfigChanges() {
   return true;
 }
 
 ::media::VideoRotation DemuxerStreamForTest::video_rotation() {
   return ::media::VIDEO_ROTATION_0;
 }
 
+bool DemuxerStreamForTest::enabled() const {
+  return true;
+}
+
+void DemuxerStreamForTest::set_enabled(bool enabled, base::TimeDelta time) {
+  NOTIMPLEMENTED();
+}
+
 void DemuxerStreamForTest::DoRead(const ReadCB& read_cb) {
   has_pending_read_ = false;
 
   if (total_frame_count_ != -1 && frame_count_ >= total_frame_count_) {
     // End of stream
     read_cb.Run(kOk, ::media::DecoderBuffer::CreateEOSBuffer());
     return;
   }
 
   scoped_refptr<::media::DecoderBuffer> buffer(new ::media::DecoderBuffer(16));
   buffer->set_timestamp(frame_count_ * base::TimeDelta::FromMilliseconds(
                                            kDemuxerStreamForTestFrameDuration));
   frame_count_++;
   read_cb.Run(kOk, buffer);
 }
 
 }  // namespace media
 }  // namespace chromecast