Merge "Add background protection when work biometrics is shown" into tm-dev am: ed00c662 am: 9eeb0112

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18351382



Change-Id: I31527f7224b477453fe9cc6b03f16156ad10316e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>