return mPagePrintTimer->Start(this, aPresContext, aPrintOptions, aDelay);
return mPagePrintTimer->Start(this, aPresContext, aPrintOptions, aPOect, aDelay);
DocumentViewerImpl::StartPagePrintTimer(nsIPresContext * aPresContext,                                         nsIPrintOptions* aPrintOptions,                                        PRUint32         aDelay){  nsresult result;  if (!mPagePrintTimer) {    result = NS_NewUpdateTimer(&mPagePrintTimer);    if (NS_FAILED(result))      return result;  }  return mPagePrintTimer->Start(this, aPresContext, aPrintOptions, aDelay);}