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

ppapi/c/trusted/ppb_audio_input_trusted_dev.h

Index: ppapi/c/trusted/ppb_audio_input_trusted_dev.h
diff --git a/ppapi/c/trusted/ppb_audio_input_trusted_dev.h b/ppapi/c/trusted/ppb_audio_input_trusted_dev.h
index 9b26938dc76c28c29d09b6a0febca8803da7fe08..3d558ea2bedd8965d41dff47e77f91dde072717e 100644
--- a/ppapi/c/trusted/ppb_audio_input_trusted_dev.h
+++ b/ppapi/c/trusted/ppb_audio_input_trusted_dev.h
@@ -4,7 +4,7 @@
  */
 
 /* From trusted/ppb_audio_input_trusted_dev.idl,
- *   modified Wed Jan  4 09:11:42 2012.
+ *   modified Wed Jan  4 11:09:00 2012.
  */
 
 #ifndef PPAPI_C_TRUSTED_PPB_AUDIO_INPUT_TRUSTED_DEV_H_
@@ -37,7 +37,7 @@
  * resource; most of the PPB_AudioInput interface is also usable on this
  * resource.
  */
-struct PPB_AudioInputTrusted_Dev {
+struct PPB_AudioInputTrusted_Dev_0_1 {
   /** Returns an audio input resource. */
   PP_Resource (*CreateTrusted)(PP_Instance instance);
   /**
@@ -62,6 +62,8 @@ struct PPB_AudioInputTrusted_Dev {
                              int* shm_handle,
                              uint32_t* shm_size);
 };
+
+typedef struct PPB_AudioInputTrusted_Dev_0_1 PPB_AudioInputTrusted_Dev;
 /**
  * @}
  */