Merge "Show indicator if guest creation is not allowed" into sc-dev am:...

Merge "Show indicator if guest creation is not allowed" into sc-dev am: 5f8b9db6 am: 2ea4e5d6 am: 9f464e8c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15474473

Change-Id: I54bfb390ef524f3d9da46576305dbb516c537f21