Merge "Merge "Only call saveLayerAlpha when alpha is not at max or min values" into udc-dev am: 653c1079 am: bdfb7ffa" into udc-d1-dev-plus-aosp am: c4d0310d am: 7288f85b

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



Change-Id: I69207ed82d9ab2e654f822f749c878b5fd204f97
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>