Remove blink::Resource::Type::LinkPrefetch and replace it by a flag

third_party/WebKit/Source/core/fetch/FetchRequest.h

 /*
  * Copyright (C) 2012 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 69 matching lines @@
     ClientHintsPreferences& clientHintsPreferences() { return m_clientHintPreferences; }
 
     bool forPreload() const { return m_forPreload; }
     void setForPreload(bool forPreload, double discoveryTime = 0);
 
     double preloadDiscoveryTime() { return m_preloadDiscoveryTime; }
 
     bool isLinkPreload() { return m_linkPreload; }
     void setLinkPreload(bool isLinkPreload) { m_linkPreload = isLinkPreload; }
 
+    bool isPrefetch() const { return m_isPrefetch; }
+    void setIsPrefetch(bool isPrefetch) { m_isPrefetch = isPrefetch; }
+
     void setContentSecurityCheck(ContentSecurityPolicyDisposition contentSecurityPolicyOption) { m_options.contentSecurityPolicyOption = contentSecurityPolicyOption; }
     void setCrossOriginAccessControl(SecurityOrigin*, CrossOriginAttributeValue);
     OriginRestriction getOriginRestriction() const { return m_originRestriction; }
     void setOriginRestriction(OriginRestriction restriction) { m_originRestriction = restriction; }
     const IntegrityMetadataSet integrityMetadata() const { return m_options.integrityMetadata; }
     void setIntegrityMetadata(const IntegrityMetadataSet& metadata) { m_options.integrityMetadata = metadata; }
 
     String contentSecurityPolicyNonce() const { return m_options.contentSecurityPolicyNonce; }
     void setContentSecurityPolicyNonce(const String& nonce) { m_options.contentSecurityPolicyNonce = nonce; }
 
     void makeSynchronous();
 
 private:
     ResourceRequest m_resourceRequest;
     String m_charset;
     ResourceLoaderOptions m_options;
     bool m_forPreload;
     bool m_linkPreload;
+    bool m_isPrefetch;
     double m_preloadDiscoveryTime;
     DeferOption m_defer;
     OriginRestriction m_originRestriction;
     ResourceWidth m_resourceWidth;
     ClientHintsPreferences m_clientHintPreferences;
 };
 
 } // namespace blink
 
 #endif