LOS ANGELES — The City of Angels is a place where dreams come true, a place where you can transform into almost anything. On Saturday night, the Longhorns looked in the mirror and saw themselves as college football heavyweights. If you were wearing burnt orange inside the Los Angeles Memorial Coliseum against fourth-ranked USC, you believed in Texas again. That’s why Vince Young held up the “Hook ’em” hand sign at crunch time as receiver Lil’Jordan Humphrey made a 17-yard catch late in the fourth quarter. D’Onta Foreman came leaping off the Texas bench when twin brother Armanti made a 17-yard touchdown catch that gave Texas the lead. Matthew McConaughey sure had his Horns up when Sam Ehlinger hit Cade Brewer in overtime. All those fans UT fans tucked into the stadium’s upper reaches believed USC freshman walk-on Chase McGrath would sure miss a 43-yard field goal to win it.