WillCauseReflow(); nsresult rv = mStyleSet->AttributeChanged(mPresContext, aContent, aNameSpaceID, aAttribute, aModType, aHint); VERIFY_STYLE_TREE; DidCauseReflow();
nsresult rv = NS_OK;    if (mDidInitialReflow) { WillCauseReflow(); rv = mStyleSet->AttributeChanged(mPresContext, aContent, aNameSpaceID, aAttribute, aModType, aHint); VERIFY_STYLE_TREE; DidCauseReflow(); }
PresShell::AttributeChanged(nsIDocument *aDocument,                            nsIContent*  aContent,                            PRInt32      aNameSpaceID,                            nsIAtom*     aAttribute,                            PRInt32      aModType,                             PRInt32      aHint){  WillCauseReflow();  nsresult rv = mStyleSet->AttributeChanged(mPresContext, aContent, aNameSpaceID, aAttribute, aModType, aHint);  VERIFY_STYLE_TREE;  DidCauseReflow();  return rv;}