Merge "Fix obscured touchable region code." into rvc-dev am: c22af6e7 am:...

Merge "Fix obscured touchable region code." into rvc-dev am: c22af6e7 am: 775bbfe9 am: 07412bc5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11811379

Change-Id: Ic0dccffdf7e5f53ea046166fb67659e152d2bc7a