Merge "Allow taskbar and taskbar all apps window to receive split touches"...

Merge "Allow taskbar and taskbar all apps window to receive split touches" into tm-qpr-dev am: b1405a2f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/19084086



Change-Id: Iaa7b04387f15ece584f3f8a5899550fa75685c92
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>