NS_ASSERTION(aWindow, "null param to GetHiddenWindow"); rv = mHiddenWindow; NS_IF_ADDREF(rv); *aWindow = rv; return rv ? NS_OK : NS_ERROR_FAILURE;
*aWindow = mHiddenWindow; NS_IF_ADDREF(*aWindow); return *aWindow ? NS_OK : NS_ERROR_FAILURE;
nsAppShellService::GetHiddenWindow(nsIWebShellWindow **aWindow){  nsIWebShellWindow *rv;  NS_ASSERTION(aWindow, "null param to GetHiddenWindow");  rv = mHiddenWindow;  NS_IF_ADDREF(rv);  *aWindow = rv;  return rv ? NS_OK : NS_ERROR_FAILURE;}