After blocking auto-play flash ads back in September and "social engineering attacks" in November, Chrome will now throw up a full page warning (pictured below) when you arrive at a page with deceptive download links and ads (like those that tell you to 'click this link' to clean your viruses). Well, sometimes, maybe: the new feature of sorts will be likely be rolled out gradually.
The warning represents an expansion of Google's Safe Browsing, which warned you about malware and such.
It must be noted deceptive ads like this can be difficult for webmasters to control, as they are often generated by random ad servers. If nothing else, this could well discourage ad providers from creating these type of ads in the first place. With Chrome's massive browser share, it's not hard to believe.