Merge "Only call saveLayerAlpha when alpha is not at max or min values" into udc-dev am: 653c1079

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23261577



Change-Id: I5f863f88dd30f2b419c21662cc334588e4ef2460
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>