PART1: Initiated the SignedSettings refactoring.

chrome/chrome_browser.gypi

 # Copyright (c) 2011 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': 'static_library',
       'dependencies': [
@@ skipping 3698 matching lines @@
         'browser/ui/webui/options/chromeos/about_page_handler.cc',
         'browser/ui/webui/options/chromeos/about_page_handler.h',
         'browser/ui/webui/options/chromeos/accounts_options_handler.cc',
         'browser/ui/webui/options/chromeos/accounts_options_handler.h',
         'browser/ui/webui/options/chromeos/change_picture_options_handler.cc',
         'browser/ui/webui/options/chromeos/change_picture_options_handler.h',
         'browser/ui/webui/options/chromeos/core_chromeos_options_handler.cc',
         'browser/ui/webui/options/chromeos/core_chromeos_options_handler.h',
         'browser/ui/webui/options/chromeos/cros_language_options_handler.cc',
         'browser/ui/webui/options/chromeos/cros_language_options_handler.h',
-        'browser/ui/webui/options/chromeos/cros_options_page_ui_handler.cc',
-        'browser/ui/webui/options/chromeos/cros_options_page_ui_handler.h',
         'browser/ui/webui/options/chromeos/internet_options_handler.cc',
         'browser/ui/webui/options/chromeos/internet_options_handler.h',
         'browser/ui/webui/options/chromeos/language_chewing_handler.cc',
         'browser/ui/webui/options/chromeos/language_chewing_handler.h',
         'browser/ui/webui/options/chromeos/language_customize_modifier_keys_handler.cc',
         'browser/ui/webui/options/chromeos/language_customize_modifier_keys_handler.h',
         'browser/ui/webui/options/chromeos/language_hangul_handler.cc',
         'browser/ui/webui/options/chromeos/language_hangul_handler.h',
         'browser/ui/webui/options/chromeos/language_mozc_handler.cc',
         'browser/ui/webui/options/chromeos/language_mozc_handler.h',
@@ skipping 1357 matching lines @@
       'type': 'static_library',
       'sources': [ 'browser/history/in_memory_url_index_cache.proto' ],
       'variables': {
         'proto_in_dir': 'browser/history',
         'proto_out_dir': 'chrome/browser/history',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }