Revert of Remove header dependencies from sequence_checker.h to sequenced_worker_pool.h

chrome/browser/chromeos/input_method/input_method_syncer.cc

 // Copyright 2014 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 "chrome/browser/chromeos/input_method/input_method_syncer.h"
 
 #include <algorithm>
 #include <set>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/task_runner.h"
 #include "base/task_runner_util.h"
-#include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/common/pref_names.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/sync_preferences/pref_service_syncable.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/base/ime/chromeos/component_extension_ime_manager.h"
 #include "ui/base/ime/chromeos/extension_ime_util.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace chromeos {
@@ skipping 296 matching lines @@
 
 void InputMethodSyncer::OnIsSyncingChanged() {
   if (prefs_->GetBoolean(prefs::kLanguageShouldMergeInputMethods) &&
       prefs_->IsSyncing()) {
     MergeSyncedPrefs();
   }
 }
 
 }  // namespace input_method
 }  // namespace chromeos