A toddler pulled from a swimming pool at an Arlington home died late Tuesday at Medical Center of Arlington, police said.The 21-month-old boy was found about 10 p.m. after police responded to a possible drowning call in the 1900 block of Primrose. He was pronounced dead at 10:40 p.m.The boy, Damion Salazar, lived in the 1500 block of Harmon Terrace in Arlington, according to the Tarrant County Medical Examiner's Office.