Pepper: Add a test for PPB_TCPSocket_Private.

ppapi/ppapi_cpp.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': 'ppapi_c',
       'type': 'none',
       'all_dependent_settings': {
@@ skipping 231 matching lines @@
         'cpp/dev/zoom_dev.cc',
         'cpp/dev/zoom_dev.h',
 
         # Deprecated interfaces.
         'cpp/dev/scriptable_object_deprecated.h',
         'cpp/dev/scriptable_object_deprecated.cc',
 
         # Private interfaces.
         'cpp/private/flash_fullscreen.cc',
         'cpp/private/flash_fullscreen.h',
+        'cpp/private/flash_tcp_socket.cc',
+        'cpp/private/flash_tcp_socket.h',
         'cpp/private/instance_private.cc',
         'cpp/private/instance_private.h',
         'cpp/private/net_address_private.cc',
         'cpp/private/net_address_private.h',
         'cpp/private/var_private.cc',
         'cpp/private/var_private.h',
 
         # Trusted interfaces.
         'cpp/trusted/file_chooser_trusted.cc',
         'cpp/trusted/file_chooser_trusted.h',
@@ skipping 183 matching lines @@
             ],
           },
           'dependencies': [
             '<(DEPTH)/native_client/tools.gyp:prep_toolchain',
           ],
         },
       ],
     }],
   ],
 }