[automerger] [DO NOT MERGE] Updating security string for nyc-dev to 2018-05-01 bug: 74345861 am: 7c0f23dce5 am: 21f45f7edc am: 5a2c0096d5 am: bc62637ffa skipped: 262656a47f am: c3dd369446
am: 98086a211c

Change-Id: Icbb289c0edd5f754f1ae4b180376163e4c3f6879