Merge "Set device credential's Window flag to be SECURE." into mnc-dev am:...

Merge "Set device credential's Window flag to be SECURE." into mnc-dev am: 8bffdc26 am: cd66862b am: 769e1e31 am: b4db530a  -s ours am: 0c0728a9  -s ours am: 4d9e1199  -s ours am: 3d94477f  -s ours am: 9d865d0c  -s ours am: 7da421a2  -s ours am: 76f30a36  -s ours
am: 1b1204be  -s ours

Change-Id: Ia7f4a3d972633cb1cb976550f8cbbd819a8aab3c