Bug 80583

Latest IE Testing Center report shows following tests failing on Apple Safari 5.1.2 and Google Chrome 17.0.963.46. http://samples.msdn.microsoft.com/ietestcenter/#html5MediaElements Most of them are related to unimplemented AudioTrackList. Need to look at other tests one by one to check if any of them is a bug in our latest implementation and then each can be fixed in a separate bug. 1. HTMLMediaElement's 'audioTracks' attribute is an instance of 'AudioTrackList'. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules 2. There is only ever one 'AudioTrackList' object per 'HTMLMediaElement'. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.1 3. 'AudioTrackList' returns the correct length. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.3 4. 'AudioTrackList' returns the correct length after the video's source has changed. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.4 5. Setting the 'enabled' property of an 'AudioTrack' instance to 'false' disables the track. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.14 6. Setting the 'enabled' property of an 'AudioTrack' instance to 'false' disables the track, and the track becomes inaudible. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.15 7. When a track is enabled, the user agent must queue a task to fire a 'change' event at the 'AudioTrackList' object. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.16 8. When a track is disabled, the user agent must queue a task to fire a 'change' event at the 'AudioTrackList' object. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.17 9. When a track is enabled, the user agent must invoke the function assigned to the 'onchange' property of the 'AudioTrackList' object. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.18 10. When a track is disabled, the user agent must invoke the function assigned to the 'onchange' property of the 'AudioTrackList' object. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.19 11. An 'AudioTrackList' object represents a track list where multiple tracks can be enabled simultaneously. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.26 12. An 'AudioTrackList' object represents a track list where multiple tracks can be disabled simultaneously. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.27 13. Setting the 'enabled' property of an 'AudioTrack' instance to 'true' enables the track. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.32 14. Setting the 'enabled' property of an 'AudioTrack' instance to 'true' enables the track, and the track becomes audible. http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=AudioTrack-rules.33 15. The 'track' property of the 'track' element returns the 'TextTrack' associated with the element http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=track-rules.1 16. The 'kind' property of the 'TextTrack' object is the 'kind' property of its 'track' element for the value 'subtitles' http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=TextTrack-rules.11 17. The 'language' attribute of a 'TextTrack' object changes to the empty string ("") when the 'language' attribute is removed from its 'track' element http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=TextTrack-rules.27 18. A 'TextTrack' object whose 'track' element has a 'default' attribute becomes showing when that element is appended to a media element that has no default track http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=TextTrack-rules.31 19. A 'TextTrack' object whose 'track' element does not have a 'default' attribute becomes disabled when that element is appended to a media element http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=TextTrack-rules.33 20. An 'error' event fires if a network error occurs while the track resource is downloaded http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=TextTrack-rules.47 21. Resources for showing 'track' elements are downloaded http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=TextTrack-rules.6 22. Cues in the 'cues' property appear in the correct order http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=TextTrack-rules.9 23. The 'track' property of the 'track' element returns the 'TextTrack' object associated with the element http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=TextTrack-rules.61 24. Cues from showing tracks of kind 'subtitles' are displayed http://samples.msdn.microsoft.com/ietestcenter/html5/MediaElements_harness.htm?url=TextTrack-rules.64