Merge changes I06ab0f2d,I8b146aa1

* changes:
  Use UserHandle#getIdentifier to get the userid
  Add test for getStartUser(), getEndUser() and createForUser()
tree: 0584aae4947e5b4081e554e8848048677d4e936e
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS