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

ppapi/thunk/ppb_video_layer_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_video_layer_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
 
 namespace ppapi {
@@ skipping 55 matching lines @@
   &IsVideoLayer,
   &SetPixelFormat,
   &SetNativeSize,
   &SetClipRect,
   &IsReady,
   &UpdateContent
 };
 
 }  // namespace
 
-const PPB_VideoLayer_Dev* GetPPB_VideoLayer_Dev_Thunk() {
+const PPB_VideoLayer_Dev_0_1* GetPPB_VideoLayer_Dev_0_1_Thunk() {
   return &g_ppb_videolayer_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi