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

ppapi/thunk/ppb_audio_config_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/thunk/thunk.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_audio_config_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
 
 namespace ppapi {
@@ skipping 44 matching lines @@
 const PPB_AudioConfig g_ppb_audio_config_thunk = {
   &CreateStereo16bit,
   &RecommendSampleFrameCount,
   &IsAudioConfig,
   &GetSampleRate,
   &GetSampleFrameCount
 };
 
 }  // namespace
 
-const PPB_AudioConfig* GetPPB_AudioConfig_Thunk() {
+const PPB_AudioConfig_1_0* GetPPB_AudioConfig_1_0_Thunk() {
   return &g_ppb_audio_config_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi