Merge changes I4256ca5f,I91528e1a,I48bd594c

* changes:
  Change ConnectivityServiceTest to prepare for VPN code move.
  Add to VpnManager the VPN APIs used by Settings and SystemUI.
  Remove temporary hack in VpnTest.
tree: b2801c0e254a0f268496380630fa31c7e43901bc
  1. framework/
  2. service/
  3. OWNERS