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

chrome/browser/app_controller_mac.mm

 // 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.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "app/l10n_util_mac.h"
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/mac_util.h"
 #include "base/message_loop.h"
+#include "base/string_number_conversions.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_init.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/browser_window.h"
 #include "chrome/browser/chrome_thread.h"
 #import "chrome/browser/cocoa/about_window_controller.h"
@@ skipping 503 matching lines @@
     exitTitle = l10n_util::GetNSString(
         IDS_SINGLE_DOWNLOAD_REMOVE_CONFIRM_OK_BUTTON_LABEL);
 
     // Wait for download button text.
     waitTitle = l10n_util::GetNSString(
         IDS_SINGLE_DOWNLOAD_REMOVE_CONFIRM_CANCEL_BUTTON_LABEL);
   } else {
     // Dialog text: warning and explanation.
     warningText = l10n_util::GetNSStringF(
         IDS_MULTIPLE_DOWNLOADS_REMOVE_CONFIRM_WARNING, product_name,
-        IntToString16(downloadCount));
+        base::IntToString16(downloadCount));
     explanationText = l10n_util::GetNSStringF(
         IDS_MULTIPLE_DOWNLOADS_REMOVE_CONFIRM_EXPLANATION, product_name);
 
     // Cancel downloads and exit button text.
     exitTitle = l10n_util::GetNSString(
         IDS_MULTIPLE_DOWNLOADS_REMOVE_CONFIRM_OK_BUTTON_LABEL);
 
     // Wait for downloads button text.
     waitTitle = l10n_util::GetNSString(
         IDS_MULTIPLE_DOWNLOADS_REMOVE_CONFIRM_CANCEL_BUTTON_LABEL);
@@ skipping 518 matching lines @@
   [appController showPreferencesWindow:nil page:page profile:profile];
 }
 
 namespace app_controller_mac {
 
 bool IsOpeningNewWindow() {
   return g_is_opening_new_window;
 }
 
 }  // namespace app_controller_mac