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

ppapi/thunk/ppb_video_decoder_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/common.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/thunk.h"
 #include "ppapi/thunk/ppb_video_decoder_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
@@ skipping 72 matching lines @@
   &Decode,
   &AssignPictureBuffers,
   &ReusePictureBuffer,
   &Flush,
   &Reset,
   &Destroy
 };
 
 }  // namespace
 
-const PPB_VideoDecoder_Dev* GetPPB_VideoDecoder_Dev_Thunk() {
+const PPB_VideoDecoder_Dev_0_16* GetPPB_VideoDecoder_Dev_0_16_Thunk() {
   return &g_ppb_videodecoder_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi