Diningin: GrubHub acquires Brighton online restaurant delivery service DiningIn

Online food delivery company GrubHub, based in Chicago, said Thursday that it has completed its acquisition of Brighton-based DiningIn. The deal, along with the acquisition of California-based Restaurants on the Run, is worth between $70 million and $80 million combined, according to GrubHub spokeswoman Abby Hunt. "We're confident they're the leading two players in the restaurant delivery space," she said in an interview. GrubHub (NYSE: GRUB) declined to disclose how many employees DiningIn has…