[Do Not Merge] Update Security String to 2017-11-01 on nyc-dev bug:65631379 am: 6f224a7615 am: cbe21a52c8 am: 8d7c08cafd am: 86e0337fda am: 6b626cb4c6  -s ours am: 26bba7b920
am: 54f1f70971

Change-Id: I651ba66c05f0b9cc56b9156086d1fdcad67484e3