Merge pull request #11144 from huchengtw-moz/video/Bug_897216_video_app_plays_video_in_wrong_direction

Bug 897216 - [video] Video app plays videos recorded by the camera sidew... r=davidflanagan(cherry picked from commit 58c18428ed00d21d5b4105049c14c7ecc56b5f81)

Conflicts:
	apps/video/js/view.js
	apps/video/style/video.css
Merge remote-tracking branch 'remotes/huchengtw-moz/video/Bug_897216_v1-train' into v1-train

Bug 897216 - [video] Video app plays videos recorded by the camera sidew... r=davidflanagan