nsIContent* aParentContent, nsIAtom* aPseudoTag,
nsIContent* aContent,
PRInt32 HTMLStyleSheetImpl::RulesMatching(nsIPresContext* aPresContext,                                          nsIContent* aParentContent,                                          nsIAtom* aPseudoTag,                                          nsIStyleContext* aParentContext,                                          nsISupportsArray* aResults){  // no pseudo frame style  return 0;}