Merge "Add PermissionUtils" am: 9404c75b43 am: 540a1a6e1e am: 8b5fead2cb

Original change: https://android-review.googlesource.com/c/platform/frameworks/libs/net/+/1545484

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I0fe1072e325e03f57639727924cfb8cf86dfccc6