Revert 221619 "Initial chrome.mdns API."

trunk/src/chrome/chrome_browser_extensions.gypi

 # Copyright (c) 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_extensions',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 311 matching lines @@
         'browser/extensions/api/messaging/native_process_launcher_posix.cc',
         'browser/extensions/api/messaging/native_process_launcher_win.cc',
         'browser/extensions/api/messaging/native_process_launcher.cc',
         'browser/extensions/api/messaging/native_process_launcher.h',
         'browser/extensions/api/messaging/native_messaging_host_manifest.cc',
         'browser/extensions/api/messaging/native_messaging_host_manifest.h',
         'browser/extensions/api/messaging/native_message_port.cc',
         'browser/extensions/api/messaging/native_message_port.h',
         'browser/extensions/api/metrics_private/metrics_private_api.cc',
         'browser/extensions/api/metrics_private/metrics_private_api.h',
-        'browser/extensions/api/mdns/dns_sd_registry.h',
-        'browser/extensions/api/mdns/dns_sd_registry.cc',
-        'browser/extensions/api/mdns/mdns_api.h',
-        'browser/extensions/api/mdns/mdns_api.cc',
         'browser/extensions/api/module/module.cc',
         'browser/extensions/api/module/module.h',
         'browser/extensions/api/music_manager_private/device_id.cc',
         'browser/extensions/api/music_manager_private/device_id.h',
         'browser/extensions/api/music_manager_private/device_id_chromeos.cc',
         'browser/extensions/api/music_manager_private/device_id_linux.cc',
         'browser/extensions/api/music_manager_private/device_id_mac.cc',
         'browser/extensions/api/music_manager_private/device_id_win.cc',
         'browser/extensions/api/music_manager_private/music_manager_private_api.cc',
         'browser/extensions/api/music_manager_private/music_manager_private_api.h',
@@ skipping 703 matching lines @@
           'variables': {
             'proto_in_dir': 'browser/chromeos/contacts',
             'proto_out_dir': 'chrome/browser/chromeos/contacts',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     },],  # 'chromeos=1'
   ],  # 'conditions'
 }