Merge "Factor out roundness updates on scroll" into sc-dev am: 7f626aed am:...

Merge "Factor out roundness updates on scroll" into sc-dev am: 7f626aed am: a7156233 am: e9bdba81

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14688344

Change-Id: Idf1671b92e24add9d2035135a4a832edd647f51b