Merge changes from topic "add asynchronous DNS API flag" am: 08803bfc8c am: 5abdf0c6e1
am: fe996cb495

Change-Id: Iea0bf897c6b6944e43b76187e5ca5c3a95975db7
tree: 93b87f35eae66eadac9661dd6eb31b2635474076
  1. tests/