Make the request initiator Optional

url/origin.cc

 // 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 "url/origin.h"
 
 #include <stdint.h>
 #include <string.h>
 
 #include "base/logging.h"
@@ skipping 80 matching lines @@
 }
 
 std::ostream& operator<<(std::ostream& out, const url::Origin& origin) {
   return out << origin.Serialize();
 }
 
 bool IsSameOriginWith(const GURL& a, const GURL& b) {
   return Origin(a).IsSameOriginWith(Origin(b));
 }
 
+NullableOrigin::NullableOrigin(const GURL& url) : Origin(url) {}
+NullableOrigin::NullableOrigin(const Origin& origin) : Origin(origin) {}
+
+NullableOrigin::~NullableOrigin() {}
+
 }  // namespace url