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

ppapi/thunk/ppb_buffer_trusted_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_errors.h"
 #include "ppapi/thunk/thunk.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_buffer_trusted_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
 
 namespace ppapi {
 namespace thunk {
 
 namespace {
 
 int32_t GetSharedMemory(PP_Resource buffer_id, int* shm_handle) {
   EnterResource<PPB_BufferTrusted_API> enter(buffer_id, true);
   if (enter.failed())
     return PP_ERROR_BADRESOURCE;
   return enter.object()->GetSharedMemory(shm_handle);
 }
 
 const PPB_BufferTrusted g_ppb_buffer_trusted_thunk = {
   &GetSharedMemory,
 };
 
 }  // namespace
 
-const PPB_BufferTrusted* GetPPB_BufferTrusted_Thunk() {
+const PPB_BufferTrusted_0_1* GetPPB_BufferTrusted_0_1_Thunk() {
   return &g_ppb_buffer_trusted_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi