Move ASCIIToWide and ASCIIToUTF16 to utf_string_conversions.h. I've found it...

net/ftp/ftp_directory_listing_parser_ls.cc

Index: net/ftp/ftp_directory_listing_parser_ls.cc
===================================================================
--- net/ftp/ftp_directory_listing_parser_ls.cc	(revision 54020)
+++ net/ftp/ftp_directory_listing_parser_ls.cc	(working copy)
@@ -1,12 +1,13 @@
-// Copyright (c) 2009 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.
+// Copyright (c) 2010 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 "net/ftp/ftp_directory_listing_parser_ls.h"
 
 #include <vector>
 
 #include "base/string_util.h"
+#include "base/utf_string_conversions.h"
 #include "net/ftp/ftp_util.h"
 
 namespace {