The food service is one way for Uber to maintain a presence in Spain, after a judge in December banned its taxi service. The five-year-old company has been trying to put out flames in various cities as it aggressively expands internationally, fueled by more than $4 billion from investors and bond holders. “This is the first thing we’ve launched that allows us to get back up and running in Barcelona,” company spokesman Ben Novick said. He declined to say how many drivers are delivering meals, but he said delivery time would be 10 minutes.