Bug 896874 - [B2G][Helix][Camera]There is no tone when start or stop a video recording
Merge pull request #11900 from huchengtw-moz/camera/Bug_896874_there_is_no_tone_when_start_stop_recording

Bug 896874 - [B2G][Helix][Camera]There is no tone when start or stop a v..., r=djf, r=archur