Merge "Respect always unlocked displays when keyguard is shown." into udc-dev am: 68c74f4c51

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23692527

Change-Id: I406ecd8084f563152fa4d8ca3cd59d1bf055ddff
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>