ozone: Allow ozone evdev/kvm features to be enabled without running on ChromeOS.

chromeos/chromeos.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # These files lists are shared with the GN build.
     'chromeos_sources': [
       'accelerometer/accelerometer_reader.cc',
@@ skipping 372 matching lines @@
       'process_proxy/process_proxy_registry.cc',
       'process_proxy/process_proxy_registry.h',
       'settings/cros_settings_names.cc',
       'settings/cros_settings_names.h',
       'settings/cros_settings_provider.cc',
       'settings/cros_settings_provider.h',
       'settings/timezone_settings.cc',
       'settings/timezone_settings.h',
       'settings/timezone_settings_helper.cc',
       'settings/timezone_settings_helper.h',
+      'system/devicemode.cc',
+      'system/devicemode.h',
       'system/devicetype.cc',
       'system/devicetype.h',
 
       # Used when running mash, both on Linux and on real devices.
       'system/fake_statistics_provider.cc',
       'system/fake_statistics_provider.h',
 
       'system/name_value_pairs_parser.cc',
       'system/name_value_pairs_parser.h',
       'system/statistics_provider.cc',
@@ skipping 352 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'chromeos_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }