NS_IMETHODIMP
  CBrowserImpl::OnProgressChange(nsIWebProgress *progress, nsIRequest *request,
    PRInt32 curSelfProgress, PRInt32 maxSelfProgress,
    PRInt32 curTotalProgress, PRInt32 maxTotalProgress) {

   PRInt32 nProgress = curTotalProgress;
   PRInt32 nProgressMax = maxTotalProgress;

   if (nProgressMax == 0)
     nProgressMax = LONG_MAX;

   if (nProgress > nProgressMax)
     nProgress = nProgressMax; // Progress complete

   m_pBrowserFrameGlue->UpdateProgress(nProgress, nProgressMax);

   return NS_OK;
  }