Merge "Revert "Track per-process freezable state in BroadcastQueue."" into udc-dev am: f8e8d3f1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23305864



Change-Id: I81a8f8334ab2960ed91060d1dcaf0ff29e5a3fbc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>