Include the Origin header for XHR and Fetch API even if the request is same-origin

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

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013, Intel Corporation
  *
  * 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.
@@ skipping 104 matching lines @@
         void handleReceivedData(const char* data, size_t dataLength);
         void handleSuccessfulFinish(unsigned long identifier, double finishTime);
 
         // |this| may be dead after calling this method.
         void didTimeout(TimerBase*);
         // Calls the appropriate loading method according to policy and data
         // about origin. Only for handling the initial load (including fallback
         // after consulting ServiceWorker).
         //
         // |this| may be dead after calling this method in async mode.
-        void dispatchInitialRequest(const ResourceRequest&);
+        void dispatchInitialRequest(ResourceRequest&);
         // |this| may be dead after calling this method in async mode.
         void makeCrossOriginAccessRequest(const ResourceRequest&);
         // Loads m_fallbackRequestForServiceWorker.
         //
         // |this| may be dead after calling this method in async mode.
         void loadFallbackRequestForServiceWorker();
         // Loads m_actualRequest.
         void loadActualRequest();
         // Clears m_actualRequest and reports access control check failure to
         // m_client.
@@ skipping 101 matching lines @@
         bool m_didRedirect;
         Referrer m_referrerAfterRedirect;
 
         RawResourceClientStateChecker m_checker;
         WeakPtrFactory<DocumentThreadableLoader> m_weakFactory;
     };
 
 } // namespace blink
 
 #endif // DocumentThreadableLoader_h