Merge "Change behind-scrim's tint in BOUNCER state to match GM3 surface...

Merge "Change behind-scrim's tint in BOUNCER state to match GM3 surface color." into udc-qpr-dev am: 54d58e5a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23876558



Change-Id: I44195ed75d26133f435c4331878a69b13090d7ac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>