PRInt32 aHint)
nsChangeHint aHint)
PresShell::StyleRuleChanged(nsIDocument *aDocument,                            nsIStyleSheet* aStyleSheet,                            nsIStyleRule* aStyleRule,                            PRInt32 aHint) {  WillCauseReflow();  nsresult  rv = mStyleSet->StyleRuleChanged(mPresContext, aStyleSheet,                                             aStyleRule, aHint);  VERIFY_STYLE_TREE;  DidCauseReflow();  return rv;}