Not directly, but they would certainly have included it as an entry point to bring users into Google's account-driven services, and to make a Google account "stickier".
That indirectly does increase ad revenue and targeting, and you can be sure that over time different people in the company will keep having the "bright idea" that if they correlate OnHub data with data from Analytics, DNS, and location services, they can improve ad-targeting by 0.x%, leading to $Y million in additional revenue, and within a few years it will be.
That indirectly does increase ad revenue and targeting, and you can be sure that over time different people in the company will keep having the "bright idea" that if they correlate OnHub data with data from Analytics, DNS, and location services, they can improve ad-targeting by 0.x%, leading to $Y million in additional revenue, and within a few years it will be.