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

ppapi/thunk/ppb_char_set_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_var.h"
 #include "ppapi/shared_impl/ppb_char_set_shared.h"
 #include "ppapi/thunk/thunk.h"
 #include "ppapi/thunk/enter.h"
 
 namespace ppapi {
@@ skipping 50 matching lines @@
 }
 
 const PPB_CharSet_Dev g_ppb_char_set_thunk = {
   &UTF16ToCharSet,
   &CharSetToUTF16,
   &GetDefaultCharSet
 };
 
 }  // namespace
 
-const PPB_CharSet_Dev* GetPPB_CharSet_Dev_Thunk() {
+const PPB_CharSet_Dev_0_4* GetPPB_CharSet_Dev_0_4_Thunk() {
   return &g_ppb_char_set_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi