They are not, because they are not operating a business that acquires and resells your data. You own your document, and Google isn't selling it to third parties. Flock doesn't own municipal data, and Flock is also not "selling it to third parties"; it's facilitating a sharing system that law enforcement agencies avidly desire.

Presumably the California data brokerage statutes were written specifically to prevent the kind of nerd-lawyering happening on this thread.