Add GetSupportedLanguages(), ActiveLanguage(), and DeactivateLanguage().

chrome/browser/chromeos/language_library.h

 // Copyright (c) 2009 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_LANGUAGE_LIBRARY_H_
 #define CHROME_BROWSER_CHROMEOS_LANGUAGE_LIBRARY_H_
 
 #include <string>
 
 #include "base/observer_list.h"
@@ skipping 17 matching lines @@
   // This gets the singleton LanguageLibrary
   static LanguageLibrary* Get();
 
   // Makes sure the library is loaded, loading it if necessary. Returns true if
   // the library has been successfully loaded.
   static bool EnsureLoaded();
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
-  // Returns the list of IMEs and keyboard layouts we can select. If the cros
-  // library is not found or IBus/DBus daemon is not alive, this function
-  // returns a fallback language list (and never returns NULL).
+  // Returns the list of IMEs and keyboard layouts we can select
+  // (i.e. active). If the cros library is not found or IBus/DBus daemon
+  // is not alive, this function returns a fallback language list (and
+  // never returns NULL).
   InputLanguageList* GetLanguages();
 
+  // Returns the list of IMEs and keyboard layouts we support, including
+  // ones not active. If the cros library is not found or IBus/DBus
+  // daemon is not alive, this function returns a fallback language list
+  // (and never returns NULL).
+  InputLanguageList* GetSupportedLanguages();
+
   // Changes the current IME engine to |id| and enable IME (when |category|
   // is LANGUAGE_CATEGORY_IME). Changes the current XKB layout to |id| and
   // disable IME (when |category| is LANGUAGE_CATEGORY_XKB). |id| is a unique
   // identifier of a IME engine or XKB layout. Please check chromeos_language.h
   // in src third_party/cros/ for details.
   void ChangeLanguage(LanguageCategory category, const std::string& id);
 
+  // Activates the language specified by |category| and |id|. Returns true
+  // on success.
+  bool ActivateLanguage(LanguageCategory category, const std::string& id);
+
+  // Dectivates the language specified by |category| and |id|. Returns
+  // true on success.
+  bool DeactivateLanguage(LanguageCategory category, const std::string& id);
+
   const InputLanguage& current_language() const {
     return current_language_;
   }
 
  private:
   friend struct DefaultSingletonTraits<LanguageLibrary>;
 
   LanguageLibrary();
   ~LanguageLibrary();
 
@@ skipping 17 matching lines @@
   // The language (IME or XKB layout) which currently selected.
   InputLanguage current_language_;
 
   DISALLOW_COPY_AND_ASSIGN(LanguageLibrary);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LANGUAGE_LIBRARY_H_