Merge "Optimize offscreen layer management" into sc-dev am: 2b7d5cea am:...

Merge "Optimize offscreen layer management" into sc-dev am: 2b7d5cea am: 9f8c01a4 am: eeda8682

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/15150272

Change-Id: Iae8a7d7b238f035bcf89d8a3b4e87d3e9b551b5a