BLACKBURN, England — Wayne Rooney secured Manchester United’s record 19th English title on Saturday, scoring on a penalty kick to salvage a 1-1 draw at Blackburn. Rooney drove home the spot kick in the 73rd minute after Javier Hernandez was fouled, ensuring that United overhauls Liverpool as the most successful team in English league history. “Twenty years ago we were nowhere near Liverpool,” said midfielder Ryan Giggs, who has played in each of United’s 12 Premier League-winning teams since 1993.