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

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



Change-Id: I6f230fbbdec8f26440208fc181ec58844ca44deb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>