Add a new GetInstance() method for singleton classes used in chrome/browser files.

chrome/browser/chromeos/dom_ui/network_menu_ui.cc

 // 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 "chrome/browser/chromeos/dom_ui/network_menu_ui.h"
 
 #include "app/l10n_util.h"
 #include "base/values.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
@@ skipping 103 matching lines @@
                                    IDR_NETWORK_MENU_JS,
                                    IDR_NETWORK_MENU_CSS))) {
   NetworkMenuHandler* handler = new NetworkMenuHandler();
   AddMessageHandler((handler)->Attach(this));
 
   // Set up chrome://theme/ source.
   DOMUIThemeSource* theme = new DOMUIThemeSource(GetProfile());
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       NewRunnableMethod(
-          Singleton<ChromeURLDataManager>::get(),
+          ChromeURLDataManager::GetInstance(),
           &ChromeURLDataManager::AddDataSource,
           make_scoped_refptr(theme)));
 }
 
 bool NetworkMenuUI::ModelAction(const menus::MenuModel* model,
                                 const ListValue* values) {
   const NetworkMenu* network_menu = static_cast<const NetworkMenu*>(model);
   std::string action;
   bool success = values->GetString(0, &action);
   bool close_menu = true;
@@ skipping 58 matching lines @@
 }
 
 views::Menu2* NetworkMenuUI::CreateMenu2(menus::MenuModel* model) {
   views::Menu2* menu = new views::Menu2(model);
   NativeMenuDOMUI::SetMenuURL(
       menu, GURL(StringPrintf("chrome://%s", chrome::kChromeUINetworkMenu)));
   return menu;
 }
 
 }  // namespace chromeos