Merge "Set views below shelf explicitly invisible to skip hardware rendering" into sc-dev am: 1da11b55 am: 011d50dd am: 8fda83f9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15261872

Change-Id: Ia8c15da6fe9665975c6da42244be926da5e96b28