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

chrome/browser/dom_ui/flags_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/dom_ui/flags_ui.h"
 
 #include <string>
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
@@ skipping 165 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 
 FlagsUI::FlagsUI(TabContents* contents) : DOMUI(contents) {
   AddMessageHandler((new FlagsDOMHandler())->Attach(this));
 
   FlagsUIHTMLSource* html_source = new FlagsUIHTMLSource();
 
   // Set up the about:flags source.
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      NewRunnableMethod(Singleton<ChromeURLDataManager>::get(),
-          &ChromeURLDataManager::AddDataSource,
-          make_scoped_refptr(html_source)));
+      NewRunnableMethod(ChromeURLDataManager::GetInstance(),
+                        &ChromeURLDataManager::AddDataSource,
+                        make_scoped_refptr(html_source)));
 }
 
 // static
 RefCountedMemory* FlagsUI::GetFaviconResourceBytes() {
   return ResourceBundle::GetSharedInstance().
       LoadDataResourceBytes(IDR_FLAGS);
 }
 
 // static
 void FlagsUI::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterListPref(prefs::kEnabledLabsExperiments);
 }