Bug 833517 - to clear the ended timer after setting a new audio source. r=Dominic
Bug 823791 - Modify the highlighted background of keyboard layout
selection menu. r=timdream
Merge pull request #7800 from RudyLu/vkb/Bug823791_lang_selectUI

Bug 823791 - Modify the highlighted background of keyboard layout select...
Merge pull request #7776 from RudyLu/music/Bug833517_skip_song

Bug 833517 - to clear the ended timer after setting a new audio source. ...