[Mac] Properly show and hide the avatar button for the one-profile case.

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.
 
 {
   'variables' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
@@ skipping 1588 matching lines @@
         'browser/ui/cocoa/bookmarks/bookmark_button_unittest.mm',
         'browser/ui/cocoa/bookmarks/bookmark_editor_base_controller_unittest.mm',
         'browser/ui/cocoa/bookmarks/bookmark_editor_controller_unittest.mm',
         'browser/ui/cocoa/bookmarks/bookmark_folder_target_unittest.mm',
         'browser/ui/cocoa/bookmarks/bookmark_menu_bridge_unittest.mm',
         'browser/ui/cocoa/bookmarks/bookmark_menu_cocoa_controller_unittest.mm',
         'browser/ui/cocoa/bookmarks/bookmark_menu_unittest.mm',
         'browser/ui/cocoa/bookmarks/bookmark_model_observer_for_cocoa_unittest.mm',
         'browser/ui/cocoa/bookmarks/bookmark_name_folder_controller_unittest.mm',
         'browser/ui/cocoa/bookmarks/bookmark_tree_browser_cell_unittest.mm',
+        'browser/ui/cocoa/browser/avatar_button_controller_unittest.mm',
         'browser/ui/cocoa/browser/avatar_menu_bubble_controller_unittest.mm',
         'browser/ui/cocoa/browser/edit_search_engine_cocoa_controller_unittest.mm',
         'browser/ui/cocoa/browser_frame_view_unittest.mm',
         'browser/ui/cocoa/browser_window_cocoa_unittest.mm',
         'browser/ui/cocoa/browser_window_controller_unittest.mm',
         'browser/ui/cocoa/bubble_view_unittest.mm',
         'browser/ui/cocoa/chrome_browser_window_unittest.mm',
         'browser/ui/cocoa/chrome_event_processing_window_unittest.mm',
         'browser/ui/cocoa/clickhold_button_cell_unittest.mm',
         'browser/ui/cocoa/cocoa_profile_test.h',
@@ skipping 2378 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'
 }