Update cookie store code for Chrome 35
Update cookie store code for Chrome 35

See https://codereview.chromium.org/110883017

lakshmi-srinivas/brightray,hokein/brightray,paulcbetts/brightray,bbondy/brightray,bbondy/brightray,deepak1556/brightray,atom/brightray,tejaspathak/brightray,deepak1556/brightray,atom/brightray,lakshmi-srinivas/brightray,lakshmi-srinivas/brightray,paulcbetts/brightray,hokein/brightray,tejaspathak/brightray,brave/brightray,brave/brightray