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

ppapi/shared_impl/ppb_var_shared.h

 // 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.
 
 #ifndef PPAPI_SHARED_IMPL_PPB_VAR_SHARED_H_
 #define PPAPI_SHARED_IMPL_PPB_VAR_SHARED_H_
 
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_stdint.h"
+#include "ppapi/c/ppb_var.h"
+#include "ppapi/c/dev/ppb_var_array_buffer_dev.h"
 #include "ppapi/shared_impl/ppapi_shared_export.h"
 
 struct PP_Var;
-struct PPB_Var;
-struct PPB_Var_1_0;
-struct PPB_VarArrayBuffer_Dev;
 
 namespace ppapi {
 
 class PPAPI_SHARED_EXPORT PPB_Var_Shared {
  public:
-  static const PPB_Var* GetVarInterface();
+  static const PPB_Var_1_1* GetVarInterface1_1();
   static const PPB_Var_1_0* GetVarInterface1_0();
   static const PPB_VarArrayBuffer_Dev* GetVarArrayBufferInterface();
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_PPB_VAR_SHARED_H_