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

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

Change-Id: Iac38c22a0f491dec68334c69be82630d7a21e8bf