Move Singleton and related structs to namespace base

chrome/browser/enumerate_modules_model_win.h

 // Copyright (c) 2011 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_ENUMERATE_MODULES_MODEL_WIN_H_
 #define CHROME_BROWSER_ENUMERATE_MODULES_MODEL_WIN_H_
 
 #include <utility>
 #include <vector>
 
@@ skipping 292 matching lines @@
   void ScanNow();
 
   // Gets the whole module list as a ListValue.
   base::ListValue* GetModuleList() const;
 
   // Gets the Help Center URL for the first *notable* conflict module that we've
   // elected to notify the user about.
   GURL GetFirstNotableConflict();
 
  private:
-  friend struct DefaultSingletonTraits<EnumerateModulesModel>;
+  friend struct base::DefaultSingletonTraits<EnumerateModulesModel>;
   friend class ModuleEnumerator;
 
   EnumerateModulesModel();
   virtual ~EnumerateModulesModel();
 
   // Called on the UI thread when the helper class is done scanning.
   void DoneScanning();
 
   // Constructs a Help Center article URL for help with a particular module.
   // The module must have the SEE_LINK attribute for |recommended_action| set,
@@ skipping 32 matching lines @@
   int modules_to_notify_about_;
 
   // The number of suspected bad modules (not including confirmed bad ones)
   // found during last scan.
   int suspected_bad_modules_detected_;
 
   DISALLOW_COPY_AND_ASSIGN(EnumerateModulesModel);
 };
 
 #endif  // CHROME_BROWSER_ENUMERATE_MODULES_MODEL_WIN_H_