Remove unused include in sequenced_worker_pool.h

components/drive/chromeos/file_system/get_file_for_saving_operation.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 "components/drive/chromeos/file_system/get_file_for_saving_operation.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback_helpers.h"
+#include "base/sequenced_task_runner.h"
 #include "components/drive/chromeos/file_cache.h"
 #include "components/drive/chromeos/file_system/create_file_operation.h"
 #include "components/drive/chromeos/file_system/download_operation.h"
 #include "components/drive/chromeos/file_system/operation_delegate.h"
 #include "components/drive/event_logger.h"
 #include "components/drive/file_write_watcher.h"
 #include "components/drive/job_scheduler.h"
 
 namespace drive {
 namespace file_system {
@@ skipping 177 matching lines @@
   blocking_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(base::IgnoreResult(
           base::Bind(&internal::FileCache::FreeDiskSpaceIfNeededFor,
                      base::Unretained(cache_),
                      0))));
 }
 
 }  // namespace file_system
 }  // namespace drive