Merge "Dismiss docked stack if an activity is shown on top of the lock screen" into nyc-dev
am: 5d6a218d9e

* commit '5d6a218d9e0d21367f6365d4de51532ca7e14dc9':
  Dismiss docked stack if an activity is shown on top of the lock screen

Change-Id: Ia5f98128501fcf648da94d6393f799d83ca89656