Merge "Bubble bar drag to dismiss" into udc-qpr-dev am: e3d4a69749

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23879277

Change-Id: I82bd9a7499ddd73b9df80106a943a534690c3164
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>