Automated IWYU fix for TaskRunner includes.

net/url_request/test_url_fetcher_factory.h

 // 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.
 
 #ifndef NET_URL_REQUEST_TEST_URL_FETCHER_FACTORY_H_
 #define NET_URL_REQUEST_TEST_URL_FETCHER_FACTORY_H_
 
 #include <stdint.h>
 
 #include <list>
 #include <map>
 #include <memory>
 #include <string>
 #include <utility>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "base/sequenced_task_runner.h"
 #include "base/threading/non_thread_safe.h"
 #include "net/http/http_request_headers.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher_factory.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
 namespace net {
 
 // Changes URLFetcher's Factory for the lifetime of the object.
@@ skipping 437 matching lines @@
   std::unique_ptr<URLFetcher> CreateURLFetcher(
       int id,
       const GURL& url,
       URLFetcher::RequestType request_type,
       URLFetcherDelegate* d) override;
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_TEST_URL_FETCHER_FACTORY_H_