Merge pull request #20253 from punamdahiya/Bug1022457

Bug 1022457 - [NFC] Could not share video from video app via NFC r=djf
Merge pull request #19953 from pivanov/bug-1018163

Bug 1018163 - [Browser] Save image dialog styling looks broken
Merge pull request #20223 from timdream/lockscreen-init

Bug 995158 - Assign lockScreen to window.lockScreen before sending events, r=mnjul