Add NormalizeLanguageCode() to normalize language codes.

chrome/browser/chromeos/options/language_config_view.h

 // Copyright (c) 2010 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_OPTIONS_LANGUAGE_CONFIG_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_OPTIONS_LANGUAGE_CONFIG_VIEW_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 55 matching lines @@
 
   // OptionsPageView overrides.
   virtual void InitControlLayout();
 
   // NotificationObserver overrides.
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   // Gets the list of supported language codes like "en" and "ja".
-  void GetSupportedLangageCodes(
+  void GetSupportedLanguageCodes(
       std::vector<std::string>* out_language_codes) const;
 
   // Rewrites the language name and returns the modified version if
   // necessary. Otherwise, returns the given language name as is.
   // In particular, this rewrites the special language name used for input
   // methods that don't fall under any other languages.
   static std::wstring MaybeRewriteLanguageName(
       const std::wstring& language_name);
 
+  // Normalizes the language code and returns the normalized version.
+  // The function concverts a two-letter language code to its
+  // corresponding three-letter code like "ja" => "jpn". Otherwise,
+  // returns the given language code as-is.
+  static std::string NormalizeLanguageCode(
+      const std::string& language_code);
+
  private:
   // Initializes the input method config view.
   void InitInputMethodConfigViewMap();
 
   // Initialize id_to_{code,display_name}_map_ member variables.
   void InitLanguageIdMaps();
 
   // Creates the contents on the left, including the language table.
   views::View* CreateContentsOnLeft();
 
@@ skipping 11 matching lines @@
   // Activates or deactivates an IME whose ID is |language_id|.
   void SetLanguageActivated(const std::string& language_id, bool activated);
 
   // Returns true if an IME of |language_id| is activated.
   bool LanguageIsActivated(const std::string& language_id);
 
   // Gets the list of active IME IDs like "pinyin" and "m17n:ar:kbd".
   void GetActiveLanguageIDs(std::vector<std::string>* out_language_ids);
 
   // Gets the list of supported IME IDs like "pinyin" and "m17n:ar:kbd".
-  void GetSupportedLangageIDs(std::vector<std::string>* out_language_ids) const;
+  void GetSupportedLanguageIDs(
+      std::vector<std::string>* out_language_ids) const;
 
   // Converts a language ID to a language code of the IME. Returns "" when
   // |language_id| is unknown.
   // Example: "hangul" => "ko"
   std::string GetLanguageCodeFromID(const std::string& language_id) const;
 
   // Converts a language ID to a display name of the IME. Returns "" when
   // |language_id| is unknown.
   // Examples: "pinyin" => "Pinyin"
   //           "m17n:ar:kbd" => "kbd (m17n)"
@@ skipping 26 matching lines @@
   StringPrefMember preload_engines_;
   std::map<std::string, std::string> id_to_language_code_map_;
   std::map<std::string, std::string> id_to_display_name_map_;
 
   DISALLOW_COPY_AND_ASSIGN(LanguageConfigView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_OPTIONS_LANGUAGE_CONFIG_VIEW_H_