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

chrome/browser/dom_ui/keyboard_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/keyboard_ui.h"
 
 #include "app/resource_bundle.h"
 #include "base/ref_counted_memory.h"
 #include "base/singleton.h"
 #include "base/string_piece.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/dom_ui/chrome_url_data_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/url_constants.h"
 #include "grit/browser_resources.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 // KeyboardUI
 
 KeyboardUI::KeyboardUI(TabContents* contents)
     : DOMUI(contents) {
   KeyboardHTMLSource* html_source = new KeyboardHTMLSource();
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       NewRunnableMethod(
-          Singleton<ChromeURLDataManager>::get(),
+          ChromeURLDataManager::GetInstance(),
           &ChromeURLDataManager::AddDataSource,
           make_scoped_refptr(html_source)));
 }
 
 KeyboardUI::~KeyboardUI() {
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // KeyboardHTMLSource
 
 KeyboardUI::KeyboardHTMLSource::KeyboardHTMLSource()
     : DataSource(chrome::kChromeUIKeyboardHost, MessageLoop::current()) {
 }
 
 void KeyboardUI::KeyboardHTMLSource::StartDataRequest(const std::string& path,
                                                       bool is_off_the_record,
                                                       int request_id) {
   NOTREACHED() << "We should never get here since the extension should have"
                << "been triggered";
   SendResponse(request_id, NULL);
 }
 
 std::string KeyboardUI::KeyboardHTMLSource::GetMimeType(
     const std::string&) const {
   NOTREACHED() << "We should never get here since the extension should have"
                << "been triggered";
   return "text/html";
 }