PPB_UDPSocket_Private is switched to the new Pepper proxy.

ppapi/ppapi_shared.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': {
     'conditions': [
       ['inside_chromium_build==0', {
         'webkit_src_dir': '../../../..',
       },{
@@ skipping 103 matching lines @@
           'shared_impl/private/ppb_char_set_shared.cc',
           'shared_impl/private/ppb_char_set_shared.h',
           'shared_impl/private/ppb_host_resolver_shared.cc',
           'shared_impl/private/ppb_host_resolver_shared.h',
           'shared_impl/private/ppb_tcp_server_socket_shared.cc',
           'shared_impl/private/ppb_tcp_server_socket_shared.h',
           'shared_impl/private/ppb_x509_certificate_private_shared.cc',
           'shared_impl/private/ppb_x509_certificate_private_shared.h',
           'shared_impl/private/tcp_socket_private_impl.cc',
           'shared_impl/private/tcp_socket_private_impl.h',
-          'shared_impl/private/udp_socket_private_impl.cc',
-          'shared_impl/private/udp_socket_private_impl.h',
 
           'thunk/enter.cc',
           'thunk/enter.h',
           'thunk/ppb_audio_api.h',
           'thunk/ppb_audio_config_api.h',
           'thunk/ppb_audio_config_thunk.cc',
           'thunk/ppb_audio_input_api.h',
           'thunk/ppb_audio_input_thunk.cc',
           'thunk/ppb_audio_thunk.cc',
           'thunk/ppb_audio_trusted_thunk.cc',
@@ skipping 172 matching lines @@
               'thunk/ppb_tcp_socket_private_thunk.cc',
               'thunk/ppb_udp_socket_private_thunk.cc',
               'thunk/ppb_x509_certificate_private_thunk.cc',
             ],
           }],
         ],
       }],
     ],
   },
 }