Bug 879362 - [A/V][video] When YouTube video completes, UX (Pause button, timer) is ambiguous
Merge pull request #10363 from huchengtw-moz/video/Bug_879362_when_youtube_video_complete_ux_is_ambiguous

Bug 879362 - [A/V][video] When YouTube video completes, UX (Pause button...r=@djf