Merge "Revert "Revert "Restore support for source hint rect""" into rvc-dev am: e5e4c105c2 am: 4ea00b38bf am: de61184422

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

Change-Id: Id0b9793e46d0c69e3249bd2cdf01ecf4a35933e5