[rAC, OSX] Use bubble windows for error messages.

chrome/chrome_tests_unit.gypi

 # Copyright 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.
 {
   'targets': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 1439 matching lines @@
         'browser/ui/cocoa/accelerators_cocoa_unittest.mm',
         'browser/ui/cocoa/animatable_image_unittest.mm',
         'browser/ui/cocoa/animatable_view_unittest.mm',
         'browser/ui/cocoa/applescript/apple_event_util_unittest.mm',
         'browser/ui/cocoa/applescript/bookmark_applescript_utils_unittest.h',
         'browser/ui/cocoa/applescript/bookmark_applescript_utils_unittest.mm',
         'browser/ui/cocoa/applescript/bookmark_folder_applescript_unittest.mm',
         'browser/ui/cocoa/applescript/bookmark_item_applescript_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_account_chooser_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_details_container_unittest.mm',
+        'browser/ui/cocoa/autofill/autofill_error_bubble_controller_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_main_container_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_notification_container_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_notification_controller_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_overlay_controller_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_pop_up_button_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_textfield_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_section_container_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_section_view_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_sign_in_container_unittest.mm',
         'browser/ui/cocoa/autofill/autofill_suggestion_container_unittest.mm',
@@ skipping 1431 matching lines @@
             'browser/ui/app_list/test/fake_profile.h',
             'browser/ui/app_list/test/fake_profile_store.cc',
             'browser/ui/app_list/test/fake_profile_store.h',
             'browser/ui/app_list/test/fast_show_pickler_unittest.cc',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }