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: I0eea149e3f25cdcbd962fc9a5025543922c30764
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>