Implement STUN support for P2P Transport API.

content/content_renderer.gypi

 # Copyright (c) 2011 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': 'content_renderer',
       'type': 'static_library',
       'dependencies': [
@@ skipping 174 matching lines @@
         ['p2p_apis==1', {
           'sources': [
             'renderer/p2p/host_address_request.cc',
             'renderer/p2p/host_address_request.h',
             'renderer/p2p/ipc_network_manager.cc',
             'renderer/p2p/ipc_network_manager.h',
             'renderer/p2p/ipc_socket_factory.cc',
             'renderer/p2p/ipc_socket_factory.h',
             'renderer/p2p/p2p_transport_impl.cc',
             'renderer/p2p/p2p_transport_impl.h',
+            'renderer/p2p/port_allocator.cc',
+            'renderer/p2p/port_allocator.h',
             'renderer/p2p/socket_client.cc',
             'renderer/p2p/socket_client.h',
             'renderer/p2p/socket_dispatcher.cc',
             'renderer/p2p/socket_dispatcher.h',
           ],
         }],
         ['enable_gpu==1', {
           'dependencies': [
             '../gpu/gpu.gyp:gles2_c_lib',
           ],
@@ skipping 40 matching lines @@
             'renderer/media/video_capture_module_impl.cc',
             'renderer/media/video_capture_module_impl.h',
             'renderer/media/video_capture_module_impl_device_info.cc',
             'renderer/media/video_capture_module_impl_device_info.h',
           ],
         }],
       ],
     },
   ],
 }