End drag touch event when crossing task drag threshold, and only when task is going up (drag to dismiss) am: 49cb49b1f5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14800534

Change-Id: I176a2014bbddf096b25130be4f5d9348c58c1b4c