Move Singleton and related structs to namespace base

content/browser/download/mhtml_generation_manager.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_DOWNLOAD_MHTML_GENERATION_MANAGER_H_
 #define CONTENT_BROWSER_DOWNLOAD_MHTML_GENERATION_MANAGER_H_
 
 #include <map>
 
 #include "base/files/file.h"
@@ skipping 27 matching lines @@
   void StreamMHTML(WebContents* web_contents,
                    base::File file,
                    const GenerateMHTMLCallback& callback);
 
   // Notification from the renderer that the MHTML generation finished.
   // |mhtml_data_size| contains the size in bytes of the generated MHTML data,
   // or -1 in case of failure.
   void MHTMLGenerated(int job_id, int64 mhtml_data_size);
 
  private:
-  friend struct DefaultSingletonTraits<MHTMLGenerationManager>;
+  friend struct base::DefaultSingletonTraits<MHTMLGenerationManager>;
   class Job;
 
   MHTMLGenerationManager();
   virtual ~MHTMLGenerationManager();
 
   // Called on the file thread to create |file|.
   void CreateFile(int job_id,
                   const base::FilePath& file,
                   base::ProcessHandle renderer_process);
 
@@ skipping 20 matching lines @@
 
   typedef std::map<int, Job*> IDToJobMap;
   IDToJobMap id_to_job_;
 
   DISALLOW_COPY_AND_ASSIGN(MHTMLGenerationManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_MHTML_GENERATION_MANAGER_H_