NS_IMETHOD StyleRuleRemoved(nsIDocument* aDocument, nsIStyleSheet* aStyleSheet, nsIStyleRule* aStyleRule) { return NS_OK; }
NS_IMPL_NSIDOCUMENTOBSERVER_STYLE_STUB(nsBindingManager)
  NS_IMETHOD StyleRuleRemoved(nsIDocument* aDocument,                              nsIStyleSheet* aStyleSheet,                              nsIStyleRule* aStyleRule) { return NS_OK; }