A Chicago ordinance barring women from going topless in public does not violate the U.S. Constitution, a federal appeals court held Wednesday.Splitting 2-1, the 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. District Judge Sharon Johnson Coleman to dismiss Sonoku Tagami’s lawsuit challenging the ban.Tagami argues prohibiting women from exposing their breasts in public violates the First Amendment’s guarantee of freedom of expression.She also argues prohibiting women — but not men &mdash …