* @param array[] $calls For each array, call addVaryHeader() with those arguments
* @param string[] $cookies Array of cookie names to vary on
* @param string $vary Text of expected Vary header (including the 'Vary: ')
- * @param string $key Text of expected Key header (including the 'Key: ')
*/
public function testVaryHeaders( array $calls, array $cookies, $vary ) {
// Get rid of default Vary fields