Automated IWYU fix for TaskRunner includes.

ios/chrome/browser/browser_state/chrome_browser_state_impl.cc

 // Copyright 2013 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 "ios/chrome/browser/browser_state/chrome_browser_state_impl.h"
 
 #include <utility>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
+#include "base/sequenced_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "components/bookmarks/browser/bookmark_model.h"
 #include "components/keyed_service/ios/browser_state_dependency_manager.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/prefs/json_pref_store.h"
 #include "components/prefs/pref_service.h"
 #include "components/proxy_config/pref_proxy_config_tracker.h"
 #include "components/sync_preferences/pref_service_syncable.h"
 #include "components/user_prefs/user_prefs.h"
 #include "ios/chrome/browser/application_context.h"
@@ skipping 230 matching lines @@
 net::SSLConfigService* ChromeBrowserStateImpl::GetSSLConfigService() {
   // If ssl_config_service_manager_ is null, this typically means that some
   // KeyedService is trying to create a RequestContext at startup,
   // but SSLConfigServiceManager is not initialized until DoFinalInit() which is
   // invoked after all KeyedServices have been initialized (see
   // http://crbug.com/171406).
   DCHECK(ssl_config_service_manager_)
       << "SSLConfigServiceManager is not initialized yet";
   return ssl_config_service_manager_->Get();
 }