Make the request initiator Optional

net/url_request/url_fetcher_impl.cc

 // Copyright (c) 2012 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 "net/url_request/url_fetcher_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/sequenced_task_runner.h"
@@ skipping 74 matching lines @@
 
 void URLFetcherImpl::AddExtraRequestHeader(const std::string& header_line) {
   core_->AddExtraRequestHeader(header_line);
 }
 
 void URLFetcherImpl::SetRequestContext(
     URLRequestContextGetter* request_context_getter) {
   core_->SetRequestContext(request_context_getter);
 }
 
-void URLFetcherImpl::SetInitiatorURL(const GURL& initiator) {
-  core_->SetInitiatorURL(initiator);
+void URLFetcherImpl::SetInitiator(
+    const base::Optional<url::Origin>& initiator) {
+  core_->SetInitiator(initiator);
 }
 
 void URLFetcherImpl::SetURLRequestUserData(
     const void* key,
     const CreateDataCallback& create_data_callback) {
   core_->SetURLRequestUserData(key, create_data_callback);
 }
 
 void URLFetcherImpl::SetStopOnRedirect(bool stop_on_redirect) {
   core_->SetStopOnRedirect(stop_on_redirect);
@@ skipping 118 matching lines @@
 URLFetcherFactory* URLFetcherImpl::factory() {
   return g_factory;
 }
 
 // static
 void URLFetcherImpl::set_factory(URLFetcherFactory* factory) {
   g_factory = factory;
 }
 
 }  // namespace net