mTitle(),
mTitle(aTitle),
SheetLoadData::SheetLoadData(CSSLoaderImpl* aLoader, nsIURI* aURL,                              const nsString& aMedia,                              PRInt32 aDefaultNameSpaceID,                             nsICSSStyleSheet* aParentSheet, PRInt32 aSheetIndex)  : mLoader(aLoader),    mURL(aURL),    mTitle(),    mMedia(aMedia),    mDefaultNameSpaceID(aDefaultNameSpaceID),    mSheetIndex(aSheetIndex),    mOwningElement(nsnull),    mParserToUnblock(nsnull),    mDidBlockParser(PR_FALSE),    mParentSheet(aParentSheet),    mNext(nsnull),    mParentData(nsnull),    mPendingChildren(0),    mIsInline(PR_FALSE),    mIsAgent(PR_FALSE),    mSyncLoad(PR_FALSE),    mCallback(nsnull),    mCallbackData(nsnull){  NS_ADDREF(mLoader);  NS_ADDREF(mURL);  NS_ADDREF(mParentSheet);}