Implement "Language Switcher" for Chromium OS.

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': '<(library)',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 215 matching lines @@
         'browser/chromeos/cros_library.cc',
         'browser/chromeos/cros_library.h',
         'browser/chromeos/external_cookie_handler.cc',
         'browser/chromeos/external_cookie_handler.h',
         'browser/chromeos/external_metrics.cc',
         'browser/chromeos/external_metrics.h',
         'browser/chromeos/external_protocol_dialog.cc',
         'browser/chromeos/external_protocol_dialog.h',
         'browser/chromeos/gview_request_interceptor.cc',
         'browser/chromeos/gview_request_interceptor.h',
+        'browser/chromeos/language_library.cc',
+        'browser/chromeos/language_library.h',
+        'browser/chromeos/language_menu_button.cc',
+        'browser/chromeos/language_menu_button.h',
         'browser/chromeos/main_menu.cc',
         'browser/chromeos/main_menu.h',
         'browser/chromeos/mount_library.cc',
         'browser/chromeos/mount_library.h',
         'browser/chromeos/network_library.cc',
         'browser/chromeos/network_library.h',
         'browser/chromeos/network_menu_button.cc',
         'browser/chromeos/network_menu_button.h',
         'browser/chromeos/panel_controller.cc',
         'browser/chromeos/panel_controller.h',
@@ skipping 2128 matching lines @@
       ],
     },
   ],
 }
 
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 # tab-width:2
 # indent-tabs-mode:nil
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