Don't use deprecated ListValue::Append(Value*) overload.

chrome/browser/ui/webui/options/search_engine_manager_handler.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_UI_WEBUI_OPTIONS_SEARCH_ENGINE_MANAGER_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_SEARCH_ENGINE_MANAGER_HANDLER_H_
 
+#include <memory>
+
 #include "base/macros.h"
 #include "chrome/browser/ui/search_engines/edit_search_engine_controller.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 #include "ui/base/models/table_model_observer.h"
 
 class KeywordEditorController;
 
 namespace extensions {
 class Extension;
 }
@@ skipping 47 matching lines @@
 
   // Called when an edit is cancelled.
   // Called from WebUI.
   void EditCancelled(const base::ListValue* args);
 
   // Called when an edit is finished and should be saved.
   // Called from WebUI.
   void EditCompleted(const base::ListValue* args);
 
   // Returns a dictionary to pass to WebUI representing the given search engine.
-  base::DictionaryValue* CreateDictionaryForEngine(int index, bool is_default);
+  std::unique_ptr<base::DictionaryValue> CreateDictionaryForEngine(
+      int index,
+      bool is_default);
 
   // Returns a dictionary to pass to WebUI representing the extension.
   base::DictionaryValue* CreateDictionaryForExtension(
       const extensions::Extension& extension);
 
   DISALLOW_COPY_AND_ASSIGN(SearchEngineManagerHandler);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_SEARCH_ENGINE_MANAGER_HANDLER_H_