Add app_list_unittests as a test step and tree closer on mac, win, and linux_aura.

masters/master.chromium.win/master_win_cfg.py

 # 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.
 
 from master import master_config
 from master.factory import chromium_factory
 
 defaults = {}
 
 helper = master_config.Helper(defaults)
@@ skipping 226 matching lines @@
                         'start_crash_handler': True,
                         'generate_gtest_json': True}))
 
 B('Win 7 Tests x64 (2)', 'rel_x64_unit_2', 'windows',
   'win_x64_rel_trigger', notify_on_missing=True)
 F('rel_x64_unit_2', win_tester().ChromiumFactory(
     slave_type='Tester',
     target='Release_x64',
     build_url=rel_x64_archive,
     tests=[
+      'app_list_unittests',
       'base_unittests',
       'browser_tests',
       'net_unittests',
     ],
     factory_properties={'process_dumps': True,
                         'sharded_tests': sharded_tests,
                         'browser_total_shards': 3, 'browser_shard_index': 2,
                         'start_crash_handler': True,
                         'generate_gtest_json': True}))
 
@@ skipping 342 matching lines @@
           ],
     factory_properties={
       'generate_gtest_json': True,
       'process_dumps': True,
       'sharded_tests': sharded_tests,
       'start_crash_handler': True,
     }))
 
 def Update(config, active_master, c):
   return helper.Update(c)