Remove enabled/set_enabled from DemuxerStream interface

media/base/fake_demuxer_stream.cc

Index: media/base/fake_demuxer_stream.cc
diff --git a/media/base/fake_demuxer_stream.cc b/media/base/fake_demuxer_stream.cc
index 6874dcfae455afee0ee7a68e71d1aa7411f92dba..a7883db5cc7f67a39111b0f42fec6b058b285c9f 100644
--- a/media/base/fake_demuxer_stream.cc
+++ b/media/base/fake_demuxer_stream.cc
@@ -103,14 +103,6 @@ VideoRotation FakeDemuxerStream::video_rotation() {
   return VIDEO_ROTATION_0;
 }
 
-bool FakeDemuxerStream::enabled() const {
-  return true;
-}
-
-void FakeDemuxerStream::set_enabled(bool enabled, base::TimeDelta timestamp) {
-  NOTIMPLEMENTED();
-}
-
 void FakeDemuxerStream::HoldNextRead() {
   DCHECK(task_runner_->BelongsToCurrentThread());
   read_to_hold_ = next_read_num_;