Add a lock to the managed user settings page and require authentication for unlocking.

chrome/chrome_browser_ui.gypi

 # Copyright 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_ui',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 1928 matching lines @@
         'browser/ui/webui/nacl_ui.cc',
         'browser/ui/webui/nacl_ui.h',
         'browser/ui/webui/set_as_default_browser_ui.cc',
         'browser/ui/webui/set_as_default_browser_ui.h',
         'browser/ui/webui/net_export_ui.cc',
         'browser/ui/webui/net_export_ui.h',
         'browser/ui/webui/net_internals/net_internals_ui.cc',
         'browser/ui/webui/net_internals/net_internals_ui.h',
         'browser/ui/webui/local_omnibox_popup/local_omnibox_popup_ui.cc',
         'browser/ui/webui/local_omnibox_popup/local_omnibox_popup_ui.h',
+        'browser/ui/webui/managed_user_passphrase_dialog.cc',
+        'browser/ui/webui/managed_user_passphrase_dialog.h',
         'browser/ui/webui/ntp/app_launcher_handler.cc',
         'browser/ui/webui/ntp/app_launcher_handler.h',
         'browser/ui/webui/ntp/favicon_webui_handler.cc',
         'browser/ui/webui/ntp/favicon_webui_handler.h',
         'browser/ui/webui/ntp/foreign_session_handler.cc',
         'browser/ui/webui/ntp/foreign_session_handler.h',
         'browser/ui/webui/ntp/most_visited_handler.cc',
         'browser/ui/webui/ntp/most_visited_handler.h',
         'browser/ui/webui/ntp/new_tab_page_handler.cc',
         'browser/ui/webui/ntp/new_tab_page_handler.h',
@@ skipping 91 matching lines @@
         'browser/ui/webui/options/home_page_overlay_handler.cc',
         'browser/ui/webui/options/home_page_overlay_handler.h',
         'browser/ui/webui/options/import_data_handler.cc',
         'browser/ui/webui/options/import_data_handler.h',
         'browser/ui/webui/options/language_dictionary_overlay_handler.cc',
         'browser/ui/webui/options/language_dictionary_overlay_handler.h',
         'browser/ui/webui/options/language_options_handler.cc',
         'browser/ui/webui/options/language_options_handler.h',
         'browser/ui/webui/options/language_options_handler_common.cc',
         'browser/ui/webui/options/language_options_handler_common.h',
+        'browser/ui/webui/options/managed_user_passphrase_handler.cc',
+        'browser/ui/webui/options/managed_user_passphrase_handler.h',
         'browser/ui/webui/options/managed_user_settings_handler.cc',
         'browser/ui/webui/options/managed_user_settings_handler.h',
         'browser/ui/webui/options/manage_profile_handler.cc',
         'browser/ui/webui/options/manage_profile_handler.h',
         'browser/ui/webui/options/media_devices_selection_handler.cc',
         'browser/ui/webui/options/media_devices_selection_handler.h',
         'browser/ui/webui/options/media_galleries_handler.cc',
         'browser/ui/webui/options/media_galleries_handler.h',
         'browser/ui/webui/options/options_sync_setup_handler.cc',
         'browser/ui/webui/options/options_sync_setup_handler.h',
@@ skipping 734 matching lines @@
         }],
         ['enable_message_center==1', {
           'dependencies': [
             '../ui/message_center/message_center.gyp:message_center',
           ],
         }],
       ],
     },
   ],
 }