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

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

Index: third_party/WebKit/Source/core/loader/DocumentThreadableLoader.h
diff --git a/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.h b/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.h
index fcd9c6a34749fba2977393339cd98f32bee23273..838e885ebd6ce0c01e23bc6a924cd3a69c4b6e13 100644
--- a/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.h
+++ b/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.h
@@ -122,7 +122,7 @@ class CORE_EXPORT DocumentThreadableLoader final : public ThreadableLoader, priv
         // 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.