void WebFrameLoaderClient::dispatchDidReceiveContentLength(DocumentLoader* loader, unsigned long identifier, int length)
{
    WebView* webView = m_webFrame->webView();
    COMPtr<IWebResourceLoadDelegate> resourceLoadDelegate;
    if (FAILED(webView->resourceLoadDelegate(&resourceLoadDelegate)))
        return;

    resourceLoadDelegate->didReceiveContentLength(webView, identifier, length, getWebDataSource(loader));
}