Merge "Formalize CoreCoordinators" into udc-dev am: e7482b5c42 am: 1cbefacd3a am: 117b0353b8

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

Change-Id: I9d0262d6ab24328d258b95ea6354477a3fd1f272
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>