First cut at custom user style sheets.

chrome/chrome_browser.gypi

 # Copyright (c) 2010 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 1914 matching lines @@
         'browser/translate/options_menu_model.cc',
         'browser/translate/options_menu_model.h',
         'browser/translate/translate_infobars_delegates.cc',
         'browser/translate/translate_infobars_delegates.h',
         'browser/translate/translate_manager.cc',
         'browser/translate/translate_manager.h',
         'browser/translate/translate_prefs.cc',
         'browser/translate/translate_prefs.h',
         'browser/user_data_manager.cc',
         'browser/user_data_manager.h',
+        'browser/user_style_sheet_watcher.cc',
+        'browser/user_style_sheet_watcher.h',
         'browser/utility_process_host.cc',
         'browser/utility_process_host.h',
         'browser/view_ids.h',
         'browser/views/about_chrome_view.cc',
         'browser/views/about_chrome_view.h',
         'browser/views/about_ipc_dialog.cc',
         'browser/views/about_ipc_dialog.h',
         'browser/views/about_network_dialog.cc',
         'browser/views/about_network_dialog.h',
         'browser/views/accelerator_table_gtk.cc',
@@ skipping 956 matching lines @@
       ],
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: