Merge "Formalize CoreCoordinators" into udc-dev am: e7482b5c42

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22792430

Change-Id: I3e23b2b52357cebdb9760118797893d158704faf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>