Cookie Monster has a list of default allowed schemes for cookies to be
used on. Add "ws" and "wss" to that list.

This CL adds them even on iOS, where the libnet WebSocket implementation is not
used, but this should be harmless.

BUG=319104
TEST=net_unittests

Review URL: https://codereview.chromium.org/71523003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239425 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 239425