Google Fiber, the high-speed Internet unit of Alphabet, has agreed to buy Webpass, a San Francisco-based broadband service provider that operates in five major metropolitan areas of the U.S., Webpass announced Wednesday. The deal will allow the combined companies to accelerate the growth of high-speed Internet across the U.S., said Webpass President Charles Barr. Webpass will remain focused on expanding Web access to residential and commercial buildings, mainly through point-to-point wireless infrastructure, he said.