Merge "Restore support for source hint rect" into rvc-dev am: 2776d3e9 am:...

Merge "Restore support for source hint rect" into rvc-dev am: 2776d3e9 am: 72bc5ff4 am: 4d976521 am: c000753c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11713503

Change-Id: Iab6f69d943afe6687ee61613ddfdc6dc4e91f178