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

ppapi/c/dev/ppb_video_decoder_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_video_decoder_dev.idl modified Tue Nov 29 11:27:39 2011. */
+/* From dev/ppb_video_decoder_dev.idl modified Wed Dec 14 18:08:00 2011. */
 
 #ifndef PPAPI_C_DEV_PPB_VIDEO_DECODER_DEV_H_
 #define PPAPI_C_DEV_PPB_VIDEO_DECODER_DEV_H_
 
 #include "ppapi/c/dev/pp_video_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"
@@ skipping 25 matching lines @@
  *   - Hand the textures back to the decoder using ReusePictureBuffer.
  * - To signal EOS to the decoder: call Flush() and wait for NotifyFlushDone
  *   callback.
  * - To reset the decoder (e.g. to implement Seek): call Reset() and wait for
  *   NotifyResetDone callback.
  * - To tear down the decoder call Destroy().
  *
  * See PPP_VideoDecoder_Dev for the notifications the decoder may send the
  * plugin.
  */
-struct PPB_VideoDecoder_Dev {
+struct PPB_VideoDecoder_Dev_0_16 {
   /**
    * Creates & initializes a video decoder.
    *
    * Parameters:
    *   |instance| pointer to the plugin instance.
    *   |context| a PPB_Graphics3D resource in which decoding will happen.
    *   |profile| the video stream's format profile.
    *
    * The created decoder is returned as PP_Resource. 0 means failure.
    */
@@ skipping 87 matching lines @@
    * are dropped and the decoder frees all of its resources.  Although resources
    * may be freed asynchronously, after this method returns no more callbacks
    * will be made on the client.  Any resources held by the client at that point
    * may be freed.
    *
    * Parameters:
    *   |video_decoder| is the previously created handle to the decoder resource.
    */
   void (*Destroy)(PP_Resource video_decoder);
 };
+
+typedef struct PPB_VideoDecoder_Dev_0_16 PPB_VideoDecoder_Dev;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_DEV_PPB_VIDEO_DECODER_DEV_H_ */