[mac] Implement a windowed extension install/permissions prompt.

chrome/chrome_tests.gypi

 # Copyright 2013 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' : {
     'chromedriver_unittest_sources': [
       'test/chromedriver/capabilities_unittest.cc',
       'test/chromedriver/chrome/chrome_finder_unittest.cc',
       'test/chromedriver/chrome/console_logger_unittest.cc',
       'test/chromedriver/chrome/device_manager_unittest.cc',
@@ skipping 1393 matching lines @@
         'browser/ui/cocoa/certificate_viewer_mac_browsertest.mm',
         'browser/ui/cocoa/constrained_window/constrained_window_mac_browsertest.mm',
         'browser/ui/cocoa/content_settings/collected_cookies_mac_browsertest.mm',
         'browser/ui/cocoa/content_settings/content_setting_bubble_cocoa_unittest.mm',
         'browser/ui/cocoa/dev_tools_controller_browsertest.mm',
         'browser/ui/cocoa/extensions/extension_action_context_menu_controller_browsertest.mm',
         'browser/ui/cocoa/extensions/extension_install_dialog_controller_browsertest.mm',
         'browser/ui/cocoa/extensions/extension_install_prompt_test_utils.h',
         'browser/ui/cocoa/extensions/extension_install_prompt_test_utils.mm',
         'browser/ui/cocoa/extensions/media_galleries_dialog_cocoa_browsertest.mm',
+        'browser/ui/cocoa/extensions/windowed_install_dialog_controller_browsertest.mm',
         'browser/ui/cocoa/find_bar/find_bar_browsertest.mm',
         'browser/ui/cocoa/location_bar/zoom_decoration_browsertest.mm',
         'browser/ui/cocoa/omnibox/omnibox_view_mac_browsertest.mm',
         'browser/ui/cocoa/one_click_signin_bubble_controller_browsertest.mm',
         'browser/ui/cocoa/one_click_signin_dialog_controller_browsertest.mm',
         'browser/ui/cocoa/profile_signin_confirmation_view_controller_browsertest.mm',
         'browser/ui/cocoa/ssl_client_certificate_selector_cocoa_browsertest.mm',
         'browser/ui/cocoa/view_id_util_browsertest.mm',
         'browser/ui/find_bar/find_bar_host_browsertest.cc',
         'browser/ui/fullscreen/fullscreen_controller_browsertest.cc',
@@ skipping 1626 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
           ],
         }]
     }],
   ],  # 'conditions'
 }