Bind open firewall ports to visible application windows.

extensions/extensions.gypi

 # Copyright 2015 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': {
     'extensions_common_constants_sources': [
       'common/constants.cc',
       'common/constants.h',
     ],
@@ skipping 1011 matching lines @@
       'test/result_catcher.cc',
       'test/result_catcher.h',
       'test/test_content_utility_client.cc',
       'test/test_content_utility_client.h',
       'test/test_extensions_client.cc',
       'test/test_extensions_client.h',
       'test/test_permission_message_provider.cc',
       'test/test_permission_message_provider.h',
     ],
   },
+  'conditions': [
+    ['chromeos==1', {
+      'variables': {
+        'extensions_browser_sources': [
+          'browser/api/socket/app_firewall_hole_manager.cc',
+          'browser/api/socket/app_firewall_hole_manager.h',
+        ],
+        'extensions_test_support_sources': [
+          'test/test_web_contents_modal_dialog_manager.cc',
+        ],
+      },
+    }],
+  ],
 }