Merge "Introduce a private flag to extend frame with cutout" into tm-dev am:...

Merge "Introduce a private flag to extend frame with cutout" into tm-dev am: 78840228 am: 6b86ee52

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17032265

Change-Id: I6658de2779aab1dfcab8c193882077b5f16b9675