Revert of Stop passing raw pointers to base::Value API in c/b/ui

chrome/browser/ui/webui/options/language_options_handler_common.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_LANGUAGE_OPTIONS_HANDLER_COMMON_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_LANGUAGE_OPTIONS_HANDLER_COMMON_H_
 
-#include <memory>
-
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
@@ skipping 24 matching lines @@
       const std::string& language) override;
 
   // The following static methods are public for ease of testing.
 
   // Gets the set of language codes that can be used as UI language.
   // The return value will look like:
   // {'en-US': true, 'fi': true, 'fr': true, ...}
   //
   // Note that true in values does not mean anything. We just use the
   // dictionary as a set.
-  static std::unique_ptr<base::DictionaryValue> GetUILanguageCodeSet();
+  static base::DictionaryValue* GetUILanguageCodeSet();
 
   // Gets the set of language codes that can be used for spellchecking.
   // The return value will look like:
   // {'en-US': true, 'fi': true, 'fr': true, ...}
   //
   // Note that true in values does not mean anything. We just use the
   // dictionary as a set.
-  static std::unique_ptr<base::DictionaryValue> GetSpellCheckLanguageCodeSet();
+  static base::DictionaryValue* GetSpellCheckLanguageCodeSet();
 
  private:
   // Sets the application locale.
   virtual void SetApplicationLocale(const std::string& language_code) = 0;
 
   // Called when the language options is opened.
   void LanguageOptionsOpenCallback(const base::ListValue* args);
 
   // Called when the UI language is changed.
   // |args| will contain the language code as string (ex. "fr").
@@ skipping 14 matching lines @@
   // Returns a pointer to the browser SpellcheckService. Can be null if the
   // service has already shut down.
   SpellcheckService* GetSpellcheckService();
 
   DISALLOW_COPY_AND_ASSIGN(LanguageOptionsHandlerCommon);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_LANGUAGE_OPTIONS_HANDLER_COMMON_H_