Get rid of the EnableClose() infrastructure in Widget.

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.
 {
   'target_defaults': {
     'conditions': [
       ['strip_tests==1', {
         'cflags!': [ '-g' ],
         'ldflags': [ '-Wl,--strip-debug' ],
       }],
@@ skipping 1873 matching lines @@
         'browser/ui/toolbar/encoding_menu_controller_unittest.cc',
         'browser/ui/toolbar/toolbar_model_unittest.cc',
         'browser/ui/toolbar/wrench_menu_model_unittest.cc',
         'browser/ui/touch/tabs/touch_tab_strip_unittest.cc',
         'browser/ui/views/accessibility_event_router_views_unittest.cc',
         'browser/ui/views/bookmarks/bookmark_context_menu_test.cc',
         'browser/ui/views/bookmarks/bookmark_editor_view_unittest.cc',
         'browser/ui/views/bubble/border_contents_unittest.cc',
         'browser/ui/views/extensions/browser_action_drag_data_unittest.cc',
         'browser/ui/views/first_run_bubble_unittest.cc',
+        'browser/ui/views/first_run_search_engine_view_unittest.cc',
         'browser/ui/views/generic_info_view_unittest.cc',
         'browser/ui/views/reload_button_unittest.cc',
         'browser/ui/views/select_file_dialog_extension_unittest.cc',
         'browser/ui/views/select_file_dialog_win_unittest.cc',
         'browser/ui/views/status_icons/status_tray_win_unittest.cc',
         'browser/ui/views/tabs/base_tab_strip_test_fixture.h',
         'browser/ui/views/tabs/fake_base_tab_strip_controller.cc',
         'browser/ui/views/tabs/fake_base_tab_strip_controller.h',
         'browser/ui/views/tabs/tab_strip_unittest.cc',
         'browser/ui/webui/chrome_web_ui_data_source_unittest.cc',
@@ skipping 2436 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'
 }