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

ppapi/c/dev/ppb_zoom_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/ppb_zoom_dev.idl modified Fri Aug 26 15:06:04 2011. */
+/* From dev/ppb_zoom_dev.idl modified Wed Oct  5 14:06:02 2011. */
 
 #ifndef PPAPI_C_DEV_PPB_ZOOM_DEV_H_
 #define PPAPI_C_DEV_PPB_ZOOM_DEV_H_
 
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_stdint.h"
 
 #define PPB_ZOOM_DEV_INTERFACE_0_2 "PPB_Zoom(Dev);0.2"
 #define PPB_ZOOM_DEV_INTERFACE PPB_ZOOM_DEV_INTERFACE_0_2
 
 /**
  * @file
  * Implementation of the Zoom interface.
  */
 
 
 /**
  * @addtogroup Interfaces
  * @{
  */
 /**
  * Zoom interface should only apply to those full-page "plugin-document".
  */
-struct PPB_Zoom_Dev {
+struct PPB_Zoom_Dev_0_2 {
   /**
    * Informs the browser about the new zoom factor for the plugin (see
    * ppp_zoom_dev.h for a description of zoom factor). The plugin should only
    * call this function if the zoom change was triggered by the browser, it's
    * only needed in case a plugin can update its own zoom, say because of its
    * own UI.
    */
   void (*ZoomChanged)(PP_Instance instance, double factor);
   /**
    * Sets the mininum and maximium zoom factors.
    */
   void (*ZoomLimitsChanged)(PP_Instance instance,
                             double minimum_factor,
                             double maximium_factor);
 };
+
+typedef struct PPB_Zoom_Dev_0_2 PPB_Zoom_Dev;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_DEV_PPB_ZOOM_DEV_H_ */