I admit I've not been following the Chrome saga, but what does the DoJ mean by Google divesting from Chrome? Will they have to sell the Chrome brand? Will they have to get rid of all Chrome developers? If not, what would prevent Google from keeping all the devs and just rebranding the browser to something else based on Chromium?

I truly don't understand how you could force someone to divest from an open source project. Why would they not simply prevent Google (or any company) from paying broswers to limit our choice of search engine?