Merge "Revert "Revert "Restore support for source hint rect""" into rvc-dev am: e5e4c105 am: 4ea00b38 am: ef53953f

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

Change-Id: Ib0869f6a14aed9153d9209c5d85e172bf4010cd1