Bug fix: Append a language to the list after blocking it for Translate on Chrome OS

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 "base/memory/weak_ptr.h"
 #include "chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
@@ skipping 61 matching lines @@
   void UiLanguageChangeCallback(const base::ListValue* args);
 
   // Called when the spell check language is changed.
   // |args| will contain the language code as string (ex. "fr").
   void SpellCheckLanguageChangeCallback(const base::ListValue* args);
 
   // Called when the user clicks "Retry" button for a spellcheck dictionary that
   // has failed to download.
   void RetrySpellcheckDictionaryDownload(const base::ListValue* args);
 
+  // Called when the user saves the language list preferences.
+  void UpdateLanguageListCallback(const base::ListValue* args);
+
   // Updates the hunspell dictionary that is used for spellchecking.
   void RefreshHunspellDictionary();
 
   // Returns the hunspell dictionary that is used for spellchecking. Never null.
   base::WeakPtr<SpellcheckHunspellDictionary>& GetHunspellDictionary();
 
   // The hunspell dictionary that is used for spellchecking. Might be null.
   base::WeakPtr<SpellcheckHunspellDictionary> hunspell_dictionary_;
 
   DISALLOW_COPY_AND_ASSIGN(LanguageOptionsHandlerCommon);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_LANGUAGE_OPTIONS_HANDLER_COMMON_H_