Sharesheet - Profile switching & permissions

Need to make sure all content uris have the userid prepended in them,
otherwise when switching profiles the chooser will be denied access.
This is needed for content preview in the chooser itself.

Bug: 128597855
Test: atest ChooserActivityTest
Change-Id: Id835c7b443c1c5a83a8bf61d0545d86e32e92bfc