nsCSSLoaderCallbackFunc aCallback, void* aData)
const nsString& aTitle, const nsString& aMedia, PRInt32 aDefaultNameSpaceID, nsIContent* aOwner, PRInt32 aDocIndex, nsIParser* aParserToUnblock, PRBool aIsInline)
SheetLoadData::SheetLoadData(CSSLoaderImpl* aLoader, nsIURI* aURL,                              nsCSSLoaderCallbackFunc aCallback, void* aData)  : mLoader(aLoader),    mURL(aURL),    mTitle(),    mMedia(),    mDefaultNameSpaceID(kNameSpaceID_Unknown),    mSheetIndex(-1),    mOwningElement(nsnull),    mParserToUnblock(nsnull),    mDidBlockParser(PR_FALSE),    mParentSheet(nsnull),    mNext(nsnull),    mParentData(nsnull),    mPendingChildren(0),    mIsInline(PR_FALSE),    mIsAgent(PR_TRUE),    mSyncLoad(PRBool(nsnull == aCallback)),    mCallback(aCallback),    mCallbackData(nsnull){  NS_INIT_REFCNT();  NS_ADDREF(mLoader);  NS_ADDREF(mURL);}