Camerons didn't buy Leeds Brewery, they bought a bunch of pubs from it (including this one).  Camerons claim to operate it under their "Urban Country Pubs" brand, but that branding certainly wasn't obvious to me the last time I was in (admittedly a while ago).
Separately and more recently, Kirkstall Brewery bought Leeds Brewery, and Kirkstall beers now appear alongside Leeds beers in former Leeds pubs (but not this one, because it wasn't a Leeds pub at the time).
