Merge "Better support transient and persistent taskbar in taskbar's overlays."...

Merge "Better support transient and persistent taskbar in taskbar's overlays." into tm-qpr-dev am: a76222d2 am: e34202df

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20693438



Change-Id: I6b7bef257cd1553c6a2e79e99c52926b2b3f3012
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>