app_list::SearchResult: Duplicate() is const.

chrome/browser/ui/app_list/search/app_result.h

 // Copyright 2013 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_UI_APP_LIST_SEARCH_APP_RESULT_H_
 #define CHROME_BROWSER_UI_APP_LIST_SEARCH_APP_RESULT_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 34 matching lines @@
   ~AppResult() override;
 
   void UpdateFromMatch(const TokenizedString& title,
                        const TokenizedStringMatch& match);
 
   void UpdateFromLastLaunched(const base::Time& current_time,
                               const base::Time& last_launched);
 
   // SearchResult overrides:
   void Open(int event_flags) override;
-  scoped_ptr<SearchResult> Duplicate() override;
+  scoped_ptr<SearchResult> Duplicate() const override;
   ui::MenuModel* GetContextMenuModel() override;
 
  private:
   void StartObservingExtensionRegistry();
   void StopObservingExtensionRegistry();
 
   // Checks if extension is disabled and if enable flow should be started.
   // Returns true if extension enable flow is started or there is already one
   // running.
   bool RunExtensionEnableFlow();
@@ skipping 26 matching lines @@
   scoped_ptr<ExtensionEnableFlow> extension_enable_flow_;
 
   extensions::ExtensionRegistry* extension_registry_;
 
   DISALLOW_COPY_AND_ASSIGN(AppResult);
 };
 
 }  // namespace app_list
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_SEARCH_APP_RESULT_H_