It doesn't, and that's why I dumped it. Chrome is susceptible to attacks like js:prontexi via poisoned ads that the user doesn't need to click on or even mouseover. The ad loads, the script runs, and if your antivirus is less than what it should be, you're toast. Even folks surfing the New York Times have been hit with this particular virus. The average user isn't going to catch on that the site they visited had nothing to do with what happened. But they will tell all their friends that "I went to so-and-so's site and got a virus." The Times has the resources to recover from that hit on their reputation, but what about some web forum struggling already to find a niche? A mom-and-pop retail/repair outlet in some strip mall somewhere?
Chrome can't be trusted as long as they insist on fetching ads from adservers that can't be trusted to get *their* house in order.