Move the number conversions from string_util to a new file....

chrome_frame/np_proxy_service.cc

Index: chrome_frame/np_proxy_service.cc
===================================================================
--- chrome_frame/np_proxy_service.cc	(revision 54340)
+++ chrome_frame/np_proxy_service.cc	(working copy)
@@ -1,8 +1,8 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// 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 "base/string_util.h"
+#include "base/string_number_conversions.h"
 #include "chrome/common/automation_constants.h"
 #include "chrome/common/json_value_serializer.h"
 #include "chrome_frame/np_proxy_service.h"
@@ -276,7 +276,7 @@
     manual_proxy_settings += "=";
     manual_proxy_settings += iter->url;
     manual_proxy_settings += ":";
-    manual_proxy_settings += IntToString(iter->port);
+    manual_proxy_settings += base::IntToString(iter->port);
     manual_proxy_settings += ";";
   }