Update from chromium https://crrev.com/304586

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 "base/bind.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/sequenced_task_runner.h"
 #include "net/url_request/url_fetcher_core.h"
@@ skipping 175 matching lines @@
     base::FilePath* out_response_path) const {
   return core_->GetResponseAsFilePath(take_ownership, out_response_path);
 }
 
 // static
 void URLFetcherImpl::CancelAll() {
   URLFetcherCore::CancelAll();
 }
 
 // static
-void URLFetcherImpl::SetEnableInterceptionForTests(bool enabled) {
-  URLFetcherCore::SetEnableInterceptionForTests(enabled);
-}
-
-// static
 void URLFetcherImpl::SetIgnoreCertificateRequests(bool ignored) {
   URLFetcherCore::SetIgnoreCertificateRequests(ignored);
 }
 
 // static
 int URLFetcherImpl::GetNumFetcherCores() {
   return URLFetcherCore::GetNumFetcherCores();
 }
 
 URLFetcherDelegate* URLFetcherImpl::delegate() const {
   return core_->delegate();
 }
 
 // static
 URLFetcherFactory* URLFetcherImpl::factory() {
   return g_factory;
 }
 
 // static
 void URLFetcherImpl::set_factory(URLFetcherFactory* factory) {
   g_factory = factory;
 }
 
 }  // namespace net