Merge "Close system dialogs on Taskbar home button tap" into tm-qpr-dev am: 199b08ef

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/22513962



Change-Id: Ie7f9d86590630d12d4ce61c6109f8bdc1bab51cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>