Bug 977422 - [Camera] When recording fails the controls have to be re enabled
Bug 971654 - Correct lockscreen background sizing
Merge pull request #16560 from dominickuo/bug-961984

Bug 961984 - [Music] check the play status in playpause() and call playpause() in play(), r=jimporter
Merge pull request #16680 from timdream/lockscreen-background2

Bug 971654 - Correct lockscreen background sizing, r=snowmantw
Merge pull request #16679 from dmarcos/bug977422

Bug 977422 - [Camera] When recording fails the controls have to be re en...
Bug 973156 - [Music] Send mozinterruptbegin and mozinterruptend to media playback widget for displaying the correct play status
Hide the controls when the media app is interrupted
Fix the css of hiding controls