Enabled pressing TAB to cycle through the Omnibox results.

chrome/chrome_tests.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.
 {
   'variables' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
       'common/pref_names.cc',
@@ skipping 1223 matching lines @@
       },
       'sources': [
         'app/breakpad_mac_stubs.mm',
         'app/chrome_dll.rc',
         # All unittests in app, browser, common, renderer and service.
         'app/nibs/main_menu_unittest.mm',
         'browser/about_flags_unittest.cc',
         'browser/accessibility/browser_accessibility_mac_unittest.mm',
         'browser/app_controller_mac_unittest.mm',
         'browser/autocomplete/autocomplete_edit_unittest.cc',
-        'browser/autocomplete/autocomplete_popup_model_unittest.cc',
         'browser/autocomplete/autocomplete_result_unittest.cc',
         'browser/autocomplete/autocomplete_unittest.cc',
         'browser/autocomplete/builtin_provider_unittest.cc',
         'browser/autocomplete/extension_app_provider_unittest.cc',
         'browser/autocomplete/history_contents_provider_unittest.cc',
         'browser/autocomplete/history_quick_provider_unittest.cc',
         'browser/autocomplete/history_url_provider_unittest.cc',
         'browser/autocomplete/keyword_provider_unittest.cc',
         'browser/autocomplete/network_action_predictor_unittest.cc',
         'browser/autocomplete/network_action_predictor_database_unittest.cc',
@@ skipping 3330 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'
 }