Merge "Revert "Revert "Restore support for source hint rect""" into rvc-dev am: e5e4c105c2 am: 4ea00b38bf

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11819193

Change-Id: Ie94eaed1cb6e99abd62d52d65f98a658df57f680