In nine days' time, Google will report its second quarter financial results, and no matter how well the search giant's done, at least a few critics are sure to argue that it needs to succeed in new fields. Matt Brittin, Managing Director of Google UK, seems to feel mobile and social are the two main candidates. Android has become fairly mainstream in terms of mobile operating systems, of course, and more and more info is starting to circulate about Chrome OS, as well. Plus,