Remove enabled/set_enabled from DemuxerStream interface

media/filters/ffmpeg_demuxer_unittest.cc

 // 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.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <deque>
 #include <string>
@@ skipping 516 matching lines @@
 }
 
 TEST_F(FFmpegDemuxerTest, Seeking_PreferredStreamSelection) {
   const int64_t kTimelineOffsetMs = 1352550896000LL;
 
   // Test the start time is the first timestamp of the video and audio stream.
   CreateDemuxer("nonzero-start-time.webm");
   InitializeDemuxerWithTimelineOffset(
       base::Time::FromJsTime(kTimelineOffsetMs));
 
-  DemuxerStream* video = GetStream(DemuxerStream::VIDEO);
-  DemuxerStream* audio = GetStream(DemuxerStream::AUDIO);
+  FFmpegDemuxerStream* video =
+      static_cast<FFmpegDemuxerStream*>(GetStream(DemuxerStream::VIDEO));
+  FFmpegDemuxerStream* audio =
+      static_cast<FFmpegDemuxerStream*>(GetStream(DemuxerStream::AUDIO));
 
   const base::TimeDelta video_start_time =
       base::TimeDelta::FromMicroseconds(400000);
   const base::TimeDelta audio_start_time =
       base::TimeDelta::FromMicroseconds(396000);
 
   // Seeking to a position lower than the start time of either stream should
   // prefer video stream for seeking.
   EXPECT_EQ(video, preferred_seeking_stream(base::TimeDelta()));
   // Seeking to a position that has audio data, but not video, should prefer
@@ skipping 937 matching lines @@
   EXPECT_EQ(kSampleFormatS32, audio_config.sample_format());
 }
 
 // Verify that FFmpeg demuxer falls back to choosing disabled streams for
 // seeking if there's no suitable enabled stream found.
 TEST_F(FFmpegDemuxerTest, Seek_FallbackToDisabledVideoStream) {
   // Input has only video stream, no audio.
   CreateDemuxer("bear-320x240-video-only.webm");
   InitializeDemuxer();
   EXPECT_EQ(nullptr, GetStream(DemuxerStream::AUDIO));
-  DemuxerStream* vstream = GetStream(DemuxerStream::VIDEO);
+  FFmpegDemuxerStream* vstream =
+      static_cast<FFmpegDemuxerStream*>(GetStream(DemuxerStream::VIDEO));
   EXPECT_NE(nullptr, vstream);
   EXPECT_EQ(vstream, preferred_seeking_stream(base::TimeDelta()));
 
   // Now pretend that video stream got disabled, e.g. due to current tab going
   // into background.
   vstream->set_enabled(false, base::TimeDelta());
   // Since there's no other enabled streams, the preferred seeking stream should
   // still be the video stream.
   EXPECT_EQ(vstream, preferred_seeking_stream(base::TimeDelta()));
 }
 
 TEST_F(FFmpegDemuxerTest, Seek_FallbackToDisabledAudioStream) {
   CreateDemuxer("bear-320x240-audio-only.webm");
   InitializeDemuxer();
-  DemuxerStream* astream = GetStream(DemuxerStream::AUDIO);
+  FFmpegDemuxerStream* astream =
+      static_cast<FFmpegDemuxerStream*>(GetStream(DemuxerStream::AUDIO));
   EXPECT_NE(nullptr, astream);
   EXPECT_EQ(nullptr, GetStream(DemuxerStream::VIDEO));
   EXPECT_EQ(astream, preferred_seeking_stream(base::TimeDelta()));
 
   // Now pretend that audio stream got disabled.
   astream->set_enabled(false, base::TimeDelta());
   // Since there's no other enabled streams, the preferred seeking stream should
   // still be the audio stream.
   EXPECT_EQ(astream, preferred_seeking_stream(base::TimeDelta()));
 }
 
 }  // namespace media