Bug 1057198 - [LockScreen] Decoupling LockScreen with System before it becomes an iframe
Bug 963009 - [Gaia][Build] Test coverage
Merge pull request #24276 from RickyChien/bug-963009

Bug 963009 - [Gaia][Build] Test coverage r=@yurenju
Merge pull request #23192 from snowmantw/issue1057198-as-iframe

Bug 1057198 - [LockScreen] Decoupling LockScreen with System before it becomes an iframe