Add GROUP_FILE ModelSafeGroup

chrome/chrome_tests.gypi

 # Copyright (c) 2011 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' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
@@ skipping 1466 matching lines @@
         'browser/sync/glue/bookmark_data_type_controller_unittest.cc',
         'browser/sync/glue/change_processor_mock.cc',
         'browser/sync/glue/change_processor_mock.h',
         'browser/sync/glue/data_type_controller_mock.cc',
         'browser/sync/glue/data_type_controller_mock.h',
         'browser/sync/glue/data_type_manager_impl_unittest.cc',
         'browser/sync/glue/data_type_manager_mock.cc',
         'browser/sync/glue/data_type_manager_mock.h',
         'browser/sync/glue/database_model_worker_unittest.cc',
         'browser/sync/glue/extension_data_type_controller_unittest.cc',
+        'browser/sync/glue/file_model_worker_unittest.cc',
         'browser/sync/glue/frontend_data_type_controller_mock.cc',
         'browser/sync/glue/frontend_data_type_controller_mock.h',
         'browser/sync/glue/frontend_data_type_controller_unittest.cc',
         'browser/sync/glue/http_bridge_unittest.cc',
         'browser/sync/glue/model_associator_mock.cc',
         'browser/sync/glue/model_associator_mock.h',
         'browser/sync/glue/non_frontend_data_type_controller_mock.cc',
         'browser/sync/glue/non_frontend_data_type_controller_mock.h',
         'browser/sync/glue/non_frontend_data_type_controller_unittest.cc',
         'browser/sync/glue/preference_data_type_controller_unittest.cc',
@@ skipping 2414 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }