Austin-American Statesman – Racetrack owners in Texas are looking to inject new life into their struggling industry by turning to a controversial way of gambling that trades live horses for a slot machine-like experience. Texans in the horse and dog racing industry — the same folks who have failed time after time to attain permission to run slot machines at their properties — now are trying to stretch the definition of pari-mutuel betting as they push for a flashy and innovative form of betting called “historical racing” that they hope complies with the strict regulations outlined in the Texas Racing…