Update security string to 2015-12-01 - DO NOT MERGE am: 6575d4a2a8 am: cc9ac27157 am: fe64ce145e  -s ours am: 0e8cf97670 am: 07e2c19536
am: a3b35dec78

* commit 'a3b35dec78b8afe7e29e3d6a0fc7524b5fd846a2':
  Update security string to 2015-12-01 - DO NOT MERGE