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

ppapi/c/dev/ppp_widget_dev.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.
  */
 
-/* From dev/ppp_widget_dev.idl modified Fri Aug 26 17:59:12 2011. */
+/* From dev/ppp_widget_dev.idl modified Wed Oct  5 14:06:02 2011. */
 
 #ifndef PPAPI_C_DEV_PPP_WIDGET_DEV_H_
 #define PPAPI_C_DEV_PPP_WIDGET_DEV_H_
 
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_point.h"
 #include "ppapi/c/pp_rect.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/pp_stdint.h"
 
 #define PPP_WIDGET_DEV_INTERFACE_0_2 "PPP_Widget(Dev);0.2"
 #define PPP_WIDGET_DEV_INTERFACE PPP_WIDGET_DEV_INTERFACE_0_2
 
 /**
  * @file
  * Implementation of the Widget interface.
  */
 
 
 /**
  * @addtogroup Interfaces
  * @{
  */
 /**
  * The interface for reusing browser widgets.
  */
-struct PPP_Widget_Dev {
+struct PPP_Widget_Dev_0_2 {
   /**
    * Informs the instance that the given rectangle needs to be repainted.
    */
   void (*Invalidate)(PP_Instance instance,
                      PP_Resource widget,
                      const struct PP_Rect* dirty_rect);
 };
+
+typedef struct PPP_Widget_Dev_0_2 PPP_Widget_Dev;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_DEV_PPP_WIDGET_DEV_H_ */