Merge "Kick off health checks with lock held." into udc-dev am: 52cef828

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22139841



Change-Id: Idc157f0581822178986c1b8af2f49c67544bc62e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>