Will it be using static whitelist files (and will they be updated separately, or as part of the browser update)?
Because the last thing (in addition to non-competitive behavior and a host of other things) is to send all browsing traffic/history to google services to validate if its an ad or not.
I don't think it's completely fair to compare "Safe Browsing Lists" to ad blocking. While I agree and don't like that Google is a gatekeeper of those, it's sparingly used in my experience. Lists like these would require much more maintenance and oversight. I suppose you could say it is similar in how the lists might be updated, which IIRC is via an "extension"-like updating mechanism via crx update files.
Because the last thing (in addition to non-competitive behavior and a host of other things) is to send all browsing traffic/history to google services to validate if its an ad or not.