Merge "Hide notifications on lockscreen when the wallpaper dream is active"...

Merge "Hide notifications on lockscreen when the wallpaper dream is active" into udc-qpr-dev am: f4064fc5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23679739



Change-Id: Ib160a02bdd53353dabc2231f40c97619c961aed6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>