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

ppapi/thunk/ppb_find_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/dev/ppb_find_dev.h"
 #include "ppapi/thunk/thunk.h"
 #include "ppapi/thunk/enter.h"
 
 namespace ppapi {
 namespace thunk {
@@ skipping 14 matching lines @@
     enter.functions()->SelectedFindResultChanged(instance, index);
 }
 
 const PPB_Find_Dev g_ppb_find_thunk = {
   &NumberOfFindResultsChanged,
   &SelectedFindResultChanged
 };
 
 }  // namespace
 
-const PPB_Find_Dev* GetPPB_Find_Dev_Thunk() {
+const PPB_Find_Dev_0_3* GetPPB_Find_Dev_0_3_Thunk() {
   return &g_ppb_find_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi