Update PPAPI IDL generator to define versioned structs, and unversioned typedef.

ppapi/thunk/ppb_udp_socket_private_thunk.cc

 // 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.
 
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/ppb_udp_socket_private.h"
 #include "ppapi/thunk/common.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_udp_socket_private_api.h"
@@ skipping 71 matching lines @@
   &IsUDPSocket,
   &Bind,
   &RecvFrom,
   &GetRecvFromAddress,
   &SendTo,
   &Close
 };
 
 }  // namespace
 
-const PPB_UDPSocket_Private* GetPPB_UDPSocket_Private_Thunk() {
+const PPB_UDPSocket_Private_0_2* GetPPB_UDPSocket_Private_0_2_Thunk() {
   return &g_ppb_udp_socket_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi
-