Merge "Track per-process freezable state in BroadcastQueue." into udc-dev am: a8dbdd94 am: 54283f0b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23220096



Change-Id: Ic6ab0f18826872e33b6e0d2c9e955ab2b6bd8cd3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>