Cocoa: Media gallery dialog unit test

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 1699 matching lines @@
         'browser/ui/cocoa/download/download_item_button_unittest.mm',
         'browser/ui/cocoa/download/download_shelf_mac_unittest.mm',
         'browser/ui/cocoa/download/download_shelf_view_unittest.mm',
         'browser/ui/cocoa/download/download_util_mac_unittest.mm',
         'browser/ui/cocoa/draggable_button_unittest.mm',
         'browser/ui/cocoa/event_utils_unittest.mm',
         'browser/ui/cocoa/extensions/browser_actions_container_view_unittest.mm',
         'browser/ui/cocoa/extensions/extension_install_dialog_controller_unittest.mm',
         'browser/ui/cocoa/extensions/extension_installed_bubble_controller_unittest.mm',
         'browser/ui/cocoa/extensions/extension_popup_controller_unittest.mm',
+        'browser/ui/cocoa/extensions/media_galleries_dialog_cocoa_unittest.mm',
         'browser/ui/cocoa/fast_resize_view_unittest.mm',
         'browser/ui/cocoa/find_bar/find_bar_bridge_unittest.mm',
         'browser/ui/cocoa/find_bar/find_bar_cocoa_controller_unittest.mm',
         'browser/ui/cocoa/find_bar/find_bar_text_field_cell_unittest.mm',
         'browser/ui/cocoa/find_bar/find_bar_text_field_unittest.mm',
         'browser/ui/cocoa/find_bar/find_bar_view_unittest.mm',
         'browser/ui/cocoa/find_pasteboard_unittest.mm',
         'browser/ui/cocoa/first_run_bubble_controller_unittest.mm',
         'browser/ui/cocoa/floating_bar_backing_view_unittest.mm',
         'browser/ui/cocoa/framed_browser_window_unittest.mm',
@@ skipping 2940 matching lines @@
                 '--result', '<@(_outputs)',
                 '--isolate', 'browser_tests.isolate',
               ],
             },
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }