Customers in the main dining area at Adamson Barbecue in Toronto. (Photo ©Sherry Jacobson/Texas BBQ Posse) Other than too many people wearing Blue Jays baseball caps, there's a lot about Adamson Barbecue in Toronto -- O Canada! -- that will remind a Texan of home. -- There's the line of customers that forms well before the joint opens, even in the rain. -- The big Texas flag in the main dining room. -- The gallery of excellent Robert J. Lerma barbecue photos on the wall, including a portrait of Tootsie Tomanetz, the grand matron of smoked meat at Snow's BBQ…