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

chrome/browser/android/offline_pages/offline_page_model_factory.cc

 // Copyright 2015 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/android/offline_pages/offline_page_model_factory.h"
 
 #include <utility>
 
 #include "base/files/file_path.h"
 #include "base/memory/singleton.h"
 #include "base/sequenced_task_runner.h"
-#include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/profiles/incognito_helpers.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_constants.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/offline_pages/core/offline_page_metadata_store_sql.h"
 #include "components/offline_pages/core/offline_page_model_impl.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace offline_pages {
 
@@ skipping 28 matching lines @@
       new OfflinePageMetadataStoreSQL(background_task_runner, store_path));
 
   base::FilePath archives_dir =
       profile->GetPath().Append(chrome::kOfflinePageArchivesDirname);
 
   return new OfflinePageModelImpl(std::move(metadata_store), archives_dir,
                                   background_task_runner);
 }
 
 }  // namespace offline_pages