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

ppapi/c/dev/ppb_audio_input_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_audio_input_dev.idl modified Wed Nov 23 09:26:09 2011. */
+/* From dev/ppb_audio_input_dev.idl modified Mon Nov 28 22:30:37 2011. */
 
 #ifndef PPAPI_C_DEV_PPB_AUDIO_INPUT_DEV_H_
 #define PPAPI_C_DEV_PPB_AUDIO_INPUT_DEV_H_
 
 #include "ppapi/c/pp_bool.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 24 matching lines @@
  */
 
 /**
  * @addtogroup Interfaces
  * @{
  */
 /**
  * The <code>PPB_AudioInput_Dev</code> interface contains pointers to several
  * functions for handling audio input resources.
  */
-struct PPB_AudioInput_Dev {
+struct PPB_AudioInput_Dev_0_1 {
   /**
    * Create is a pointer to a function that creates an audio input resource.
    * No sound will be captured until StartCapture() is called.
    */
   PP_Resource (*Create)(PP_Instance instance,
                         PP_Resource config,
                         PPB_AudioInput_Callback audio_input_callback,
                         void* user_data);
   /**
    * IsAudioInput is a pointer to a function that determines if the given
@@ skipping 35 matching lines @@
    *
    * @param[in] config A PP_Resource containing the audio input resource.
    *
    * @return A PP_BOOL containing PP_TRUE if successful, otherwise PP_FALSE.
    * Also returns PP_TRUE (and is a no-op) if called while capture is already
    * stopped. If a buffer is being captured, StopCapture will block until the
    * call completes.
    */
   PP_Bool (*StopCapture)(PP_Resource audio_input);
 };
+
+typedef struct PPB_AudioInput_Dev_0_1 PPB_AudioInput_Dev;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_DEV_PPB_AUDIO_INPUT_DEV_H_ */