Factor out PluginGroup into a separate class in common/.

chrome/chrome_tests.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.
 
 {
   'variables' : {
     'browser_tests_sources_views_specific': [
       'browser/extensions/browser_action_test_util_views.cc',
       'browser/views/browser_actions_container_browsertest.cc',
     ],
@@ skipping 887 matching lines @@
         'browser/page_menu_model_unittest.cc',
         'browser/parsers/metadata_parser_filebase_unittest.cc',
         'browser/password_manager/encryptor_unittest.cc',
         'browser/password_manager/login_database_unittest.cc',
         'browser/password_manager/password_form_data.cc',
         'browser/password_manager/password_form_manager_unittest.cc',
         'browser/password_manager/password_manager_unittest.cc',
         'browser/password_manager/password_store_default_unittest.cc',
         'browser/password_manager/password_store_mac_unittest.cc',
         'browser/password_manager/password_store_win_unittest.cc',
-        'browser/plugin_updater_unittest.cc',
         'browser/pref_member_unittest.cc',
         'browser/pref_service_unittest.cc',
         'browser/preferences_mock_mac.cc',
         'browser/preferences_mock_mac.h',
         'browser/printing/print_dialog_cloud_unittest.cc',
         'browser/printing/print_job_unittest.cc',
         'browser/process_info_snapshot_mac_unittest.cc',
         'browser/profile_manager_unittest.cc',
         'browser/renderer_host/audio_renderer_host_unittest.cc',
         'browser/renderer_host/gtk_im_context_wrapper_unittest.cc',
@@ skipping 116 matching lines @@
         'common/json_pref_store_unittest.cc',
         'common/json_value_serializer_unittest.cc',
         'common/mru_cache_unittest.cc',
         'common/net/gaia/gaia_authenticator_unittest.cc',
         'common/net/gaia/gaia_authenticator2_unittest.cc',
         'common/net/gaia/gaia_authenticator2_unittest.h',
         'common/net/url_fetcher_unittest.cc',
         'common/net/test_url_fetcher_factory.cc',
         'common/net/test_url_fetcher_factory.h',
         'common/notification_service_unittest.cc',
+        'common/plugin_group_unittest.cc',
         'common/process_watcher_unittest.cc',
         'common/property_bag_unittest.cc',
         'common/render_messages_unittest.cc',
         'common/resource_dispatcher_unittest.cc',
         'common/sandbox_mac_diraccess_unittest.mm',
         'common/sandbox_mac_fontloading_unittest.mm',
         'common/sandbox_mac_unittest_helper.h',
         'common/sandbox_mac_unittest_helper.mm',
         'common/sandbox_mac_system_access_unittest.mm',
         'common/thumbnail_score_unittest.cc',
@@ skipping 1478 matching lines @@
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }
 
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