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

chrome/browser/translate/translate_manager.h

 // 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.
 
 #ifndef CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_
 #define CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_
 #pragma once
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/lazy_instance.h"
-#include "base/singleton.h"
 #include "base/task.h"
 #include "chrome/browser/prefs/pref_change_registrar.h"
 #include "chrome/common/net/url_fetcher.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 #include "chrome/common/translate_errors.h"
 
+template <typename T> struct DefaultSingletonTraits;
 class GURL;
 struct PageTranslatedDetails;
 class PrefService;
 class TabContents;
 class TranslateInfoBarDelegate;
 
 // The TranslateManager class is responsible for showing an info-bar when a page
 // in a language different than the user language is loaded.  It triggers the
 // page translation the user requests.
 // It is a singleton.
 
 class TranslateManager : public NotificationObserver,
                          public URLFetcher::Delegate {
  public:
+  // Returns the singleton instance.
+  static TranslateManager* GetInstance();
+
   virtual ~TranslateManager();
 
   // Translates the page contents from |source_lang| to |target_lang|.
   // The actual translation might be performed asynchronously if the translate
   // script is not yet available.
   void TranslatePage(TabContents* tab_contents,
                      const std::string& source_lang,
                      const std::string& target_lang);
 
   // Reverts the contents of the page in |tab_contents| to its original
@@ skipping 132 matching lines @@
   // server.
   std::vector<PendingRequest> pending_requests_;
 
   // The languages supported by the translation server.
   static base::LazyInstance<std::set<std::string> > supported_languages_;
 
   DISALLOW_COPY_AND_ASSIGN(TranslateManager);
 };
 
 #endif  // CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_