Merge "Keep visible requested for transient hide activities" into udc-dev am: b0af6d94

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22069223



Change-Id: Ib53c4776469e8d10751c5ccf5af35ad4c7affccd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>