In large bowl, beat cream until stiff peaks form. In another large bowl, beat cream cheese and powdered sugar until smooth. Stir in melted vanilla baking chips. Fold in 1/3 of whipped cream; fold in remaining whipped cream. Reserve 1 cup mixture for piped edge; spread remaining mixture over brownie. Using decorating bag fitted with star tip (1/4 to 3/8-inch opening), pipe decorative border around edge of brownie, making sure border doesn't touch side of pan. Cover; refrigerate at least 2 hours.