Merge "Fix visibility change during entering PIP app transition" into tm-dev am: 7284a6a9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18309444



Change-Id: Iaaa9e1a08a9271c242f6fe33978d3df1e1ede240
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>