A owner of a company that owns 19 private gambling rooms across Washington state on Thursday spoke in support of a bill that would authorize sports betting, including on mobile devices. But state officials opposed the measure, saying online sports betting would increase gambling addiction. Eric Persson, owner of Maverick Gaming, said people in Washington are already illegally betting on sports with bookies and off-shore companies. “That is not safe for our consumers,” Persson told the state Senate Labor and Commerce Committee.