Use a direct include of strings headers in chrome/browser/media_galleries/.

chrome/browser/media_galleries/win/mtp_device_delegate_impl_win.cc

 // Copyright (c) 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.
 //
 // MTPDeviceDelegateImplWin implementation.
 
 #include "chrome/browser/media_galleries/win/mtp_device_delegate_impl_win.h"
 
 #include <portabledevice.h>
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/sequenced_task_runner.h"
 #include "base/stl_util.h"
-#include "base/string_util.h"
 #include "base/strings/string_split.h"
+#include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/task_runner_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/thread_restrictions.h"
 #include "chrome/browser/media_galleries/fileapi/media_file_system_mount_point_provider.h"
 #include "chrome/browser/media_galleries/win/mtp_device_object_entry.h"
 #include "chrome/browser/media_galleries/win/mtp_device_object_enumerator.h"
 #include "chrome/browser/media_galleries/win/mtp_device_operations_util.h"
 #include "chrome/browser/media_galleries/win/portable_device_map_service.h"
 #include "chrome/browser/media_galleries/win/snapshot_file_details.h"
@@ skipping 583 matching lines @@
   } else {
     current_snapshot_details_->request_info().error_callback.Run(
         base::PLATFORM_FILE_ERROR_FAILED);
   }
   task_in_progress_ = false;
   current_snapshot_details_.reset();
   ProcessNextPendingRequest();
 }
 
 }  // namespace chrome