Add OptionsUI and its handler for multiple displays.

chrome/chrome_browser.gypi

 # Copyright (c) 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',
       'type': 'static_library',
@@ skipping 3898 matching lines @@
         'browser/ui/webui/options2/chromeos/accounts_options_handler2.cc',
         'browser/ui/webui/options2/chromeos/accounts_options_handler2.h',
         'browser/ui/webui/options2/chromeos/bluetooth_options_handler2.cc',
         'browser/ui/webui/options2/chromeos/bluetooth_options_handler2.h',
         'browser/ui/webui/options2/chromeos/change_picture_options_handler2.cc',
         'browser/ui/webui/options2/chromeos/change_picture_options_handler2.h',
         'browser/ui/webui/options2/chromeos/core_chromeos_options_handler2.cc',
         'browser/ui/webui/options2/chromeos/core_chromeos_options_handler2.h',
         'browser/ui/webui/options2/chromeos/cros_language_options_handler2.cc',
         'browser/ui/webui/options2/chromeos/cros_language_options_handler2.h',
+        'browser/ui/webui/options2/chromeos/display_options_handler.cc',
+        'browser/ui/webui/options2/chromeos/display_options_handler.h',
         'browser/ui/webui/options2/chromeos/internet_options_handler2.cc',
         'browser/ui/webui/options2/chromeos/internet_options_handler2.h',
         'browser/ui/webui/options2/chromeos/keyboard_handler2.cc',
         'browser/ui/webui/options2/chromeos/keyboard_handler2.h',
         'browser/ui/webui/options2/chromeos/language_chewing_handler2.cc',
         'browser/ui/webui/options2/chromeos/language_chewing_handler2.h',
         'browser/ui/webui/options2/chromeos/language_hangul_handler2.cc',
         'browser/ui/webui/options2/chromeos/language_hangul_handler2.h',
         'browser/ui/webui/options2/chromeos/language_mozc_handler2.cc',
         'browser/ui/webui/options2/chromeos/language_mozc_handler2.h',
@@ skipping 1315 matching lines @@
         'browser/metrics/proto/study.proto',
       ],
       'variables': {
         'proto_in_dir': 'browser/metrics/proto',
         'proto_out_dir': 'chrome/browser/metrics/proto',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }