Revert r151669 and r155589 as non-Aura Metro mode is gone

base/base.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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
       'base_i18n_target': 0,
     },
@@ skipping 678 matching lines @@
           'win/scoped_process_information.cc',
           'win/scoped_process_information.h',
           'win/scoped_propvariant.h',
           'win/scoped_select_object.h',
           'win/scoped_variant.cc',
           'win/scoped_variant.h',
           'win/shortcut.cc',
           'win/shortcut.h',
           'win/startup_information.cc',
           'win/startup_information.h',
-          'win/text_services_message_filter.cc',
-          'win/text_services_message_filter.h',
           'win/win_util.cc',
           'win/win_util.h',
           'win/windows_version.cc',
           'win/windows_version.h',
           'win/wrapped_window_proc.cc',
           'win/wrapped_window_proc.h',
           'x11/x11_error_tracker.cc',
           'x11/x11_error_tracker.h',
           'x11/x11_error_tracker_gtk.cc',
         ],
@@ skipping 265 matching lines @@
           'i18n/time_formatting.h',
           'i18n/timezone.cc',
           'i18n/timezone.h',
           'i18n/utf8_validator_tables.cc',
           'i18n/utf8_validator_tables.h',
         ],
       }]
     ],
   },
 }