[DO NOT MERGE] Updating Security String to 2017-08-05 on nyc-dev bug:62388772 am: 2b93753bc4 am: 8828ffc63e am: edda32c5e3  -s ours am: af114e0286  -s ours am: 332ef64b0e  -s ours am: c56a72d5fc  -s ours am: e4f93ecc22  -s ours
am: c41c875e40

Change-Id: Ib38cf38a4af75d573ec114c0f0162e0708ab0957