Merge "Add warning for a known issue in a newly added API" into sc-qpr1-dev...

Merge "Add warning for a known issue in a newly added API" into sc-qpr1-dev am: 697c7a81 am: 875c6c5c am: 8d90de79

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15583141

Change-Id: I838d144d265b5fb92cc3ad983db10fdc37adcab4