Merge "Change freeform activity occluding keyguard to fullscreen" into udc-dev am: d48052dd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22432975



Change-Id: I12915a51db04a9166e843e4e85cafbd048f5a305
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>