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

ppapi/c/dev/ppb_file_chooser_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_file_chooser_dev.idl modified Fri Nov 11 20:18:10 2011. */
+/* From dev/ppb_file_chooser_dev.idl modified Mon Nov 14 10:36:01 2011. */
 
 #ifndef PPAPI_C_DEV_PPB_FILE_CHOOSER_DEV_H_
 #define PPAPI_C_DEV_PPB_FILE_CHOOSER_DEV_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
@@ skipping 28 matching lines @@
 } PP_FileChooserMode_Dev;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_FileChooserMode_Dev, 4);
 /**
  * @}
  */
 
 /**
  * @addtogroup Interfaces
  * @{
  */
-struct PPB_FileChooser_Dev {
+struct PPB_FileChooser_Dev_0_5 {
   /**
    * This function creates a file chooser dialog resource.  The chooser is
    * associated with a particular instance, so that it may be positioned on the
    * screen relative to the tab containing the instance.
    *
    * @param[in] instance A <code>PP_Instance</code> identifying one instance
    * of a module.
    * @param[in] mode A <code>PP_FileChooserMode_Dev</code> value that controls
    * the behavior of the file chooser dialog.
    * @param[in] accept_mime_types A comma-separated list of MIME types such as
@@ skipping 42 matching lines @@
    * the user chose no files or canceled the dialog, then this method will
    * simply return 0 the first time it is called.
    *
    * @param[in] chooser The file chooser resource.
    *
    * @return A <code>PP_Resource</code> containing the next file chosen by the
    * user, or 0 if there are no more files.
    */
   PP_Resource (*GetNextChosenFile)(PP_Resource chooser);
 };
+
+typedef struct PPB_FileChooser_Dev_0_5 PPB_FileChooser_Dev;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_DEV_PPB_FILE_CHOOSER_DEV_H_ */