[automerger skipped] Merge "DO NOT MERGE Prevent apps from creating blocked channel groups" into qt-dev am: f1dc5b1ee1 am: 960d42c069 -s ours am: 2675838e1b -s ours am: f4e13e6e6a -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16621952

Change-Id: I70f0417df9c78a338a29beaa1464dafaa81eedcc