Bring broth to a simmer in a medium skillet. Working with one tortilla at a time, add tortilla to pan; cook 20 seconds or until moist, turning once. Remove tortilla; drain on paper towels. Spoon about 1/4 cup chicken mixture down center of tortilla; roll up. Place tortilla, seam-side down, in an 11 x 7-inch baking dish coated with cooking spray. Repeat procedure with remaining tortillas, broth, and chicken mixture.