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

chrome/browser/safe_browsing/incident_reporting/module_load_analyzer_win.cc

 // Copyright 2016 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/safe_browsing/incident_reporting/module_load_analyzer.h"
 
 #include <set>
 #include <utility>
 
 #include "base/file_version_info.h"
 #include "base/files/file_path.h"
 #include "base/i18n/case_conversion.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/install_verification/win/module_info.h"
 #include "chrome/browser/install_verification/win/module_verification_common.h"
 #include "chrome/browser/safe_browsing/incident_reporting/incident_receiver.h"
 #include "chrome/browser/safe_browsing/incident_reporting/suspicious_module_incident.h"
 #include "chrome/browser/safe_browsing/path_sanitizer.h"
 #include "chrome/common/safe_browsing/binary_feature_extractor.h"
 #include "chrome/common/safe_browsing/csd.pb.h"
 #include "content/public/browser/browser_thread.h"
 
 #if defined(SAFE_BROWSING_DB_LOCAL)
@@ skipping 104 matching lines @@
   // PostTaskAndReply doesn't work here because we're in a sequenced blocking
   // thread pool.
   content::BrowserThread::PostTask(
       content::BrowserThread::IO, FROM_HERE,
       base::Bind(&CheckModuleWhitelistOnIOThread, database_manager,
                  base::Passed(std::move(incident_receiver)),
                  base::Passed(std::move(module_info_set))));
 }
 
 }  // namespace safe_browsing