Change base/file_utils.h includes to base/files/file_utils.h in chrome/

chrome/browser/chromeos/app_mode/fake_cws.cc

 // Copyright 2014 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/app_mode/fake_cws.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
-#include "base/file_util.h"
+#include "base/files/file_util.h"
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "crypto/sha2.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 
 using net::test_server::BasicHttpResponse;
@@ skipping 118 matching lines @@
     http_response->set_code(net::HTTP_OK);
     http_response->set_content_type("text/xml");
     http_response->set_content(update_check_content_);
     return http_response.PassAs<HttpResponse>();
   }
 
   return scoped_ptr<HttpResponse>();
 }
 
 }  // namespace chromeos