Bug 923788 - Calculate position of lock screen icons based with calc() from center
Merge pull request #12680 from timdream/bug923788

Bug 923788 - Calculate position of lock screen icons based with calc() from center, r=gweng
Bug 921930 - [B2G][Helix][Setting][Sound][Bug][shijinde]The vibrate state is error by Setting the volume mute and unmute in sleep menu function