Example #1
0
static void preconnectIfNeeded(
    const LinkRelAttribute& relAttribute,
    const KURL& href,
    Document& document,
    const CrossOriginAttributeValue crossOrigin,
    const NetworkHintsInterface& networkHintsInterface,
    LinkCaller caller) {
  if (relAttribute.isPreconnect() && href.isValid() &&
      href.protocolIsInHTTPFamily()) {
    UseCounter::count(document, UseCounter::LinkRelPreconnect);
    if (caller == LinkCalledFromHeader)
      UseCounter::count(document, UseCounter::LinkHeaderPreconnect);
    Settings* settings = document.settings();
    if (settings && settings->logDnsPrefetchAndPreconnect()) {
      document.addConsoleMessage(ConsoleMessage::create(
          OtherMessageSource, DebugMessageLevel,
          String("Preconnect triggered for ") + href.getString()));
      if (crossOrigin != CrossOriginAttributeNotSet) {
        document.addConsoleMessage(ConsoleMessage::create(
            OtherMessageSource, DebugMessageLevel,
            String("Preconnect CORS setting is ") +
                String((crossOrigin == CrossOriginAttributeAnonymous)
                           ? "anonymous"
                           : "use-credentials")));
      }
    }
    networkHintsInterface.preconnectHost(href, crossOrigin);
  }
}
static void preconnectHost(PreloadRequest* request, const NetworkHintsInterface& networkHintsInterface)
{
    ASSERT(request);
    ASSERT(request->isPreconnect());
    KURL host(request->baseURL(), request->resourceURL());
    if (!host.isValid() || !host.protocolIsInHTTPFamily())
        return;
    networkHintsInterface.preconnectHost(host, request->crossOrigin());
}