[automerger skipped] Merge "Add a unit test for Emergency prefix" am: 07fdd29b
am: bf9d5a99 -s ours
am skip reason: change_id I25a29cc23d33f7dc8c4d9e7e0a573b1b9de9a0dc with SHA1 efa28bdc is in history
Change-Id: I501e319afd026eac87d0710a1250c56e3fffd786