Move Extension into extensions namespace

chrome/browser/chromeos/extensions/file_handler_util.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 CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_HANDLER_UTIL_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_HANDLER_UTIL_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 81 matching lines @@
     GURL target_file_url;
     FilePath virtual_path;
     FilePath absolute_path;
     bool is_directory;
   };
 
   typedef std::vector<FileDefinition> FileDefinitionList;
   class ExecuteTasksFileSystemCallbackDispatcher;
   void RequestFileEntryOnFileThread(
       const GURL& handler_base_url,
-      const scoped_refptr<const Extension>& handler,
+      const scoped_refptr<const extensions::Extension>& handler,
       int handler_pid,
       const std::vector<GURL>& file_urls);
 
   void ExecuteFailedOnUIThread();
   void ExecuteFileActionsOnUIThread(const std::string& file_system_name,
                                     const GURL& file_system_root,
                                     const FileDefinitionList& file_list,
                                     int handler_id);
   void SetupPermissionsAndDispatchEvent(const std::string& file_system_name,
                                         const GURL& file_system_root,
                                         const FileDefinitionList& file_list,
                                         int handler_pid_in,
                                         ExtensionHost* host);
 
   // Populates |handler_host_permissions| with file path-permissions pairs that
   // will be given to the handler extension host process.
   void InitHandlerHostFileAccessPermissions(
       const FileDefinitionList& file_list,
-      const Extension* handler_extension,
+      const extensions::Extension* handler_extension,
       const std::string& action_id);
   // Registers file permissions from |handler_host_permissions_| with
   // ChildProcessSecurityPolicy for process with id |handler_pid|.
   void SetupHandlerHostFileAccessPermissions(int handler_pid);
 
   Profile* profile_;
   const GURL source_url_;
   const std::string extension_id_;
   const std::string action_id_;
 
   // (File path, permission for file path) pairs for the handler.
   std::vector<std::pair<FilePath, int> > handler_host_permissions_;
 };
 
 }  // namespace file_handler_util
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_HANDLER_UTIL_H_