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

chrome/browser/back_forward_menu_model.cc

-// Copyright (c) 2006-2009 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 "build/build_config.h"
 
 #include "chrome/browser/back_forward_menu_model.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
+#include "base/string_number_conversions.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/metrics/user_metrics.h"
 #include "chrome/browser/tab_contents/navigation_controller.h"
 #include "chrome/browser/tab_contents/navigation_entry.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/url_constants.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "net/base/registry_controlled_domain.h"
 
@@ skipping 340 matching lines @@
   DCHECK(!action.empty());
   DCHECK(index >= -1);
   std::string metric_string;
   if (model_type_ == FORWARD_MENU)
     metric_string += "ForwardMenu_";
   else
     metric_string += "BackMenu_";
   metric_string += action;
   if (index != -1) {
     // +1 is for historical reasons (indices used to start at 1).
-    metric_string += IntToString(index + 1);
+    metric_string += base::IntToString(index + 1);
   }
   return metric_string;
 }