Merge "Auto show-hide overlay window if only privacy dot" into tm-dev am:...

Merge "Auto show-hide overlay window if only privacy dot" into tm-dev am: 32d70dbe am: df23d3fa am: 7522ef59

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17527087



Change-Id: Ia5d835451729b0ef1a685d3f150f56d071b99165
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>