Apply meta tag referrer policy for preloaded requests

Source/core/html/parser/PreloadRequest.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/html/parser/PreloadRequest.h"
 
 #include "core/dom/Document.h"
 #include "core/fetch/FetchInitiatorInfo.h"
 
@@ skipping 11 matching lines @@
 {
     return document->completeURLWithOverride(m_resourceURL, m_baseURL.isEmpty() ? document->url() : m_baseURL);
 }
 
 FetchRequest PreloadRequest::resourceRequest(Document* document)
 {
     ASSERT(isMainThread());
     FetchInitiatorInfo initiatorInfo;
     initiatorInfo.name = AtomicString(m_initiatorName);
     initiatorInfo.position = m_initiatorPosition;
-    FetchRequest request(ResourceRequest(completeURL(document)), initiatorInfo);
+    ResourceRequest resourceRequest(completeURL(document));
+    resourceRequest.setHTTPReferrer(SecurityPolicy::generateReferrer(m_referrerPolicy, resourceRequest.url(), document->outgoingReferrer()));
+    FetchRequest request(resourceRequest, initiatorInfo);
 
     if (m_resourceType == Resource::ImportResource) {
         SecurityOrigin* securityOrigin = document->contextDocument()->securityOrigin();
         bool sameOrigin = securityOrigin->canRequest(request.url());
         request.setCrossOriginAccessControl(securityOrigin,
             sameOrigin ? AllowStoredCredentials : DoNotAllowStoredCredentials,
             ClientDidNotRequestCredentials);
     }
 
     if (m_isCORSEnabled)
         request.setCrossOriginAccessControl(document->securityOrigin(), m_allowCredentials);
 
     request.setDefer(m_defer);
     request.setResourceWidth(m_resourceWidth);
     request.setClientHintsPreferences(m_clientHintsPreferences);
 
     return request;
 }
 
 }