Merge "Update the divider touch-region properly" into rvc-dev am: f4f1079b...

Merge "Update the divider touch-region properly" into rvc-dev am: f4f1079b am: d5a7a28c am: 9f0f9fea

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11948950

Change-Id: I5310f72b0232fa17d36102b227e220f8636ed919