Merge "Null check on BroadcastRecord's receivers list." into tm-dev am:...

Merge "Null check on BroadcastRecord's receivers list." into tm-dev am: f3e8d882 am: 09b62e61 am: dcab8f86

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17590974



Change-Id: I5d02bb10f104b11fb95d69042a68615702419023
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>