Merge "Avoid blur behind for layers that are fully opaque." into sc-dev am:...

Merge "Avoid blur behind for layers that are fully opaque." into sc-dev am: 9d799fbb am: d47f746d am: ec91ba42

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/14649087

Change-Id: Ib0d18adce5298045dc1b1b19ff0bb294e928cc4f