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

ppapi/thunk/ppb_file_ref_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_file_info.h"
 #include "ppapi/c/ppb_file_ref.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/ppb_file_ref_private.h"
 #include "ppapi/thunk/common.h"
@@ skipping 107 matching lines @@
   &Delete,
   &Rename
 };
 
 const PPB_FileRefPrivate g_ppb_file_ref_private_thunk = {
   &GetAbsolutePath
 };
 
 }  // namespace
 
-const PPB_FileRef* GetPPB_FileRef_Thunk() {
+const PPB_FileRef_1_0* GetPPB_FileRef_1_0_Thunk() {
   return &g_ppb_file_ref_thunk;
 }
 
-const PPB_FileRefPrivate* GetPPB_FileRefPrivate_Thunk() {
+const PPB_FileRefPrivate_0_1* GetPPB_FileRefPrivate_0_1_Thunk() {
   return &g_ppb_file_ref_private_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi