Generate and assign media track ids in demuxers.

third_party/WebKit/Source/core/html/track/VideoTrackList.cpp

 // 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.
 
 #include "core/html/track/VideoTrackList.h"
 
 #include "core/html/HTMLMediaElement.h"
 #include "core/html/track/VideoTrack.h"
 
 namespace blink {
@@ skipping 28 matching lines @@
 
     return -1;
 }
 
 void VideoTrackList::trackSelected(WebMediaPlayer::TrackId selectedTrackId)
 {
     // Clear the selected flag on the previously selected track, if any.
     for (unsigned i = 0; i < length(); ++i) {
         VideoTrack* track = anonymousIndexedGetter(i);
 
-        if (track->trackId() != selectedTrackId)
+        if (track->id() != selectedTrackId)
             track->clearSelected();
         else
             DCHECK(track->selected());
     }
 
     scheduleChangeEvent();
 }
 
 } // namespace blink