Set credentials mode "same-origin" when crossOrigin=anonymous is set.

third_party/WebKit/Source/core/loader/LinkLoader.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 214 matching lines @@
             dnsPrefetchIfNeeded(relAttribute, url, *document, networkHintsInterface, LinkCalledFromHeader);
 
         if (RuntimeEnabledFeatures::linkPreconnectEnabled())
             preconnectIfNeeded(relAttribute, url, *document, header.crossOrigin(), networkHintsInterface, LinkCalledFromHeader);
 
         // FIXME: Add more supported headers as needed.
     }
     return true;
 }
 
-bool LinkLoader::loadLink(const LinkRelAttribute& relAttribute, const AtomicString& crossOriginMode, const String& type, const String& as, const KURL& href, Document& document, const NetworkHintsInterface& networkHintsInterface)
+bool LinkLoader::loadLink(const LinkRelAttribute& relAttribute, CrossOriginAttributeValue crossOrigin, const String& type, const String& as, const KURL& href, Document& document, const NetworkHintsInterface& networkHintsInterface)
 {
     // TODO(yoav): Do all links need to load only after they're in document???
 
     // TODO(yoav): Convert all uses of the CrossOriginAttribute to CrossOriginAttributeValue. crbug.com/486689
     // FIXME(crbug.com/463266): We're ignoring type here. Maybe we shouldn't.
     dnsPrefetchIfNeeded(relAttribute, href, document, networkHintsInterface, LinkCalledFromMarkup);
 
-    preconnectIfNeeded(relAttribute, href, document, crossOriginAttributeValue(crossOriginMode), networkHintsInterface, LinkCalledFromMarkup);
+    preconnectIfNeeded(relAttribute, href, document, crossOrigin, networkHintsInterface, LinkCalledFromMarkup);
 
     if (m_client->shouldLoadLink())
         preloadIfNeeded(relAttribute, href, document, as);
 
     // FIXME(crbug.com/323096): Should take care of import.
     if ((relAttribute.isLinkPrefetch() || relAttribute.isLinkSubresource()) && href.isValid() && document.frame()) {
         if (!m_client->shouldLoadLink())
             return false;
         Resource::Type type = Resource::LinkPrefetch;
         if (relAttribute.isLinkSubresource()) {
             type = Resource::LinkSubresource;
             UseCounter::count(document, UseCounter::LinkRelSubresource);
         } else {
             UseCounter::count(document, UseCounter::LinkRelPrefetch);
         }
 
         FetchRequest linkRequest(ResourceRequest(document.completeURL(href)), FetchInitiatorTypeNames::link);
-        if (!crossOriginMode.isNull())
-            linkRequest.setCrossOriginAccessControl(document.securityOrigin(), crossOriginMode);
+        if (crossOrigin != CrossOriginAttributeNotSet)
+            linkRequest.setCrossOriginAccessControl(document.securityOrigin(), crossOrigin);
         setResource(LinkFetchResource::fetch(type, linkRequest, document.fetcher()));
     }
 
     if (const unsigned prerenderRelTypes = prerenderRelTypesFromRelAttribute(relAttribute, document)) {
         if (!m_prerender) {
             m_prerender = PrerenderHandle::create(document, this, href, prerenderRelTypes);
         } else if (m_prerender->url() != href) {
             m_prerender->cancel();
             m_prerender = PrerenderHandle::create(document, this, href, prerenderRelTypes);
         }
@@ skipping 14 matching lines @@
         m_prerender.clear();
     }
 }
 
 DEFINE_TRACE(LinkLoader)
 {
     visitor->trace(m_prerender);
 }
 
 }