Add a FileWatcher to base/.

base/base.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     'base.gypi',
@@ skipping 43 matching lines @@
         'bits_unittest.cc',
         'callback_unittest.cc',
         'cancellation_flag_unittest.cc',
         'command_line_unittest.cc',
         'condition_variable_unittest.cc',
         'crypto/rsa_private_key_unittest.cc',
         'crypto/signature_creator_unittest.cc',
         'crypto/signature_verifier_unittest.cc',
         'data_pack_unittest.cc',
         'debug_util_unittest.cc',
+        'file_watcher_unittest.cc',
         'event_trace_consumer_win_unittest.cc',
         'event_trace_controller_win_unittest.cc',
         'event_trace_provider_win_unittest.cc',
         'field_trial_unittest.cc',
         'file_descriptor_shuffle_unittest.cc',
         'file_path_unittest.cc',
         'file_util_unittest.cc',
         'file_version_info_unittest.cc',
         'gfx/rect_unittest.cc',
         'gmock_unittest.cc',
@@ skipping 245 matching lines @@
       ],
     }],
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: