Removed userHandle from setXXX methods

User handle is now extracted from UID of the calling process.

Previously setXXX methods may not work properly, if userHandle parameter
was different from a user of the calling process. In practice, this wouldn't
have happened because setters were always called with a userHandle of the
caller process.

Bug:17202572
Change-Id: I1c08c54c975a04b8c54719a1e280ad3cfaff2e67