Cookies don't matter when browser fingerprinting accomplishes the same task. Read the page you linked to:

"We do log records of the CSS and the font file requests, and access to this data is on a need-to-know basis and kept secure."

Just like every other Google Privacy Policy, it's insultingly disingenuous, couched in terms of protecting your privacy while actually reserving for themselves the right to violate it by collecting enough information on you for you to be uniquely identified and storing that information indefinitely.