Merge "Use screen-based coordinates to calculate divier bar dragging velocity"...

Merge "Use screen-based coordinates to calculate divier bar dragging velocity" into sc-v2-dev am: 75497636

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15842429

Change-Id: I891e789c779adf132846d19563e5086377aae9f3