Merge "Do not set profile owner on guest users on headless system user." into...

Merge "Do not set profile owner on guest users on headless system user." into sc-v2-dev am: 356b103c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15999410

Change-Id: I1072d4ef2ff398fc833a1e22c21e2e1e5687c73c