mURL(aURL), mFirstChild(nsnull), mRules(nsnull), mNext(nsnull)
mURL(nsnull), mFirstChild(nsnull), mRules(nsnull), mNext(nsnull)
CSSStyleSheetImpl::CSSStyleSheetImpl(nsIURL* aURL)  : nsICSSStyleSheet(),    mURL(aURL), mFirstChild(nsnull), mRules(nsnull), mNext(nsnull){  NS_INIT_REFCNT();  NS_ADDREF(mURL);}