chrome: Update include paths of string_split.h to its new location.

chrome/browser/chromeos/extensions/file_browser_private_api.cc

 // Copyright (c) 2012 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/extensions/file_browser_private_api.h"
 
 #include <sys/stat.h>
 #include <sys/statvfs.h>
 #include <sys/types.h>
 #include <utime.h>
 #include <utility>
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/i18n/case_conversion.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/singleton.h"
-#include "base/string_split.h"
 #include "base/stringprintf.h"
+#include "base/strings/string_split.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/drive_cache.h"
 #include "chrome/browser/chromeos/drive/drive_file_system_interface.h"
 #include "chrome/browser/chromeos/drive/drive_file_system_util.h"
 #include "chrome/browser/chromeos/drive/drive_system_service.h"
 #include "chrome/browser/chromeos/drive/drive_webapps_registry.h"
 #include "chrome/browser/chromeos/drive/search_metadata.h"
@@ skipping 3202 matching lines @@
                  this, name.size()));
   return true;
 }
 
 void ValidatePathNameLengthFunction::OnFilePathLimitRetrieved(
     size_t current_length,
     size_t max_length) {
   SetResult(new base::FundamentalValue(current_length <= max_length));
   SendResponse(true);
 }