Add utf_string_conversions to base namespace.

chrome/browser/policy/policy_path_parser_win.cc

 // Copyright (c) 2011 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 <shlobj.h>
 #include <wtsapi32.h>
 #pragma comment(lib, "wtsapi32.lib")
 
 #include "chrome/browser/policy/policy_path_parser.h"
 
@@ skipping 136 matching lines @@
   // provided on the command line must be preserved since it is specific to
   // CF's host.
   base::FilePath cf_host_dir;
   if (is_chrome_frame)
     cf_host_dir = user_data_dir->BaseName();
 
   // Policy from the HKLM hive has precedence over HKCU so if we have one here
   // we don't have to try to load HKCU.
   const char* key_name_ascii = (is_chrome_frame ? policy::key::kGCFUserDataDir :
                                 policy::key::kUserDataDir);
-  std::wstring key_name(ASCIIToWide(key_name_ascii));
+  std::wstring key_name(base::ASCIIToWide(key_name_ascii));
   if (LoadUserDataDirPolicyFromRegistry(HKEY_LOCAL_MACHINE, key_name,
                                         user_data_dir) ||
       LoadUserDataDirPolicyFromRegistry(HKEY_CURRENT_USER, key_name,
                                         user_data_dir)) {
     // A Group Policy value was loaded.  Append the Chrome Frame host directory
     // if relevant.
     if (is_chrome_frame)
       *user_data_dir = user_data_dir->Append(cf_host_dir);
   }
 }
 
 }  // namespace path_parser
 
 }  // namespace policy