Fix link header preload on subresources

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 236 matching lines @@
 {
     if (!document)
         return false;
     LinkHeaderSet headerSet(headerValue);
     for (auto& header : headerSet) {
         if (!header.valid() || header.url().isEmpty() || header.rel().isEmpty())
             return false;
 
         LinkRelAttribute relAttribute(header.rel());
         KURL url = document->completeURL(header.url());
-        if (canLoadResources == DoNotLoadResources) {
+        if (canLoadResources != OnlyLoadResources) {
             if (RuntimeEnabledFeatures::linkHeaderEnabled())
                 dnsPrefetchIfNeeded(relAttribute, url, *document, networkHintsInterface, LinkCalledFromHeader);
 
             if (RuntimeEnabledFeatures::linkPreconnectEnabled())
                 preconnectIfNeeded(relAttribute, url, *document, header.crossOrigin(), networkHintsInterface, LinkCalledFromHeader);
-        } else {
+        }
+        if (canLoadResources != DoNotLoadResources) {
             if (RuntimeEnabledFeatures::linkPreloadEnabled())
                 preloadIfNeeded(relAttribute, url, *document, header.as(), LinkCalledFromHeader);
         }
         // TODO(yoav): Add more supported headers as needed.
     }
     return true;
 }
 
 bool LinkLoader::loadLink(const LinkRelAttribute& relAttribute, CrossOriginAttributeValue crossOrigin, const String& type, const String& as, const KURL& href, Document& document, const NetworkHintsInterface& networkHintsInterface)
 {
@@ skipping 58 matching lines @@
 
 DEFINE_TRACE(LinkLoader)
 {
     visitor->trace(m_client);
     visitor->trace(m_prerender);
     visitor->trace(m_linkPreloadResourceClient);
     ResourceOwner<Resource, ResourceClient>::trace(visitor);
 }
 
 }