[automerger skipped] Merge "Prevent apps from creating blocked channel groups"...

[automerger skipped] Merge "Prevent apps from creating blocked channel groups" into sc-dev am: 5769ab47 am: 7b65e599 -s ours

am skip reason: Merged-In I8a27853c7ed05d9dfd38a3142fbbe185946c3992 with SHA-1 074a7f4c is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16623717

Change-Id: I77c9b46186328d48faa0bb388534afedd8619e38