Fix link header preload on subresources

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

 /*
  * 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 56 matching lines @@
     // from PrerenderClient
     void didStartPrerender() override;
     void didStopPrerender() override;
     void didSendLoadForPrerender() override;
     void didSendDOMContentLoadedForPrerender() override;
 
     void triggerEvents(const Resource*);
 
     void released();
     bool loadLink(const LinkRelAttribute&, CrossOriginAttributeValue, const String& type, const String& as, const KURL&, Document&, const NetworkHintsInterface&);
-    enum CanLoadResources { LoadResources, DoNotLoadResources };
+    enum CanLoadResources { OnlyLoadResources, DoNotLoadResources, LoadResourcesAndPreconnect };
     static bool loadLinkFromHeader(const String& headerValue, Document*, const NetworkHintsInterface&, CanLoadResources);
     static Resource::Type getTypeFromAsAttribute(const String& as, Document*);
 
     DECLARE_TRACE();
 
 private:
     explicit LinkLoader(LinkLoaderClient*);
 
     void linkLoadTimerFired(Timer<LinkLoader>*);
     void linkLoadingErrorTimerFired(Timer<LinkLoader>*);
     void createLinkPreloadResourceClient(ResourcePtr<Resource>);
 
     RawPtrWillBeMember<LinkLoaderClient> m_client;
 
     Timer<LinkLoader> m_linkLoadTimer;
     Timer<LinkLoader> m_linkLoadingErrorTimer;
 
     OwnPtrWillBeMember<PrerenderHandle> m_prerender;
     OwnPtrWillBeMember<LinkPreloadResourceClient> m_linkPreloadResourceClient;
 };
 
 }
 
 #endif