A great example of this is how they merged the search box into the address bar, to create the "omnibar." Since then, they've aggressively promoted submitting a new Google search for whatever you're typing in, instead of returning results from your local browser bookmarks, history, etc that wouldn't generate more ad impressions.

Omnibar seems to be what this is about. At one point they note that there’s a Reddit thread that thinks their a/b test is a bug.

Which Firestorm had years ago, as the "awesome bar".