Its a win if it is preventing a competitor from getting the kind of dominance in a market that is key to delivery of a product on which you do make money (like, in Google's case, mobile platforms are to online advertising) that they could use to extract rents that would cut into those profits.

Chrome and Android don't need to make money directly to be successful, they just need to be popular enough that other browser or mobile OS vendors can't use their position to cut off Google's advertising revenues.