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

ppapi/c/private/ppb_udp_socket_private.h

Index: ppapi/c/private/ppb_udp_socket_private.h
diff --git a/ppapi/c/private/ppb_udp_socket_private.h b/ppapi/c/private/ppb_udp_socket_private.h
index 9e6cd4887029c82a36d70d7621529285b344f52f..31033f6364f5dc54724c9ebcb255363115d260ae 100644
--- a/ppapi/c/private/ppb_udp_socket_private.h
+++ b/ppapi/c/private/ppb_udp_socket_private.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From private/ppb_udp_socket_private.idl modified Wed Nov  9 12:53:35 2011. */
+/* From private/ppb_udp_socket_private.idl modified Wed Nov 16 15:27:20 2011. */
 
 #ifndef PPAPI_C_PRIVATE_PPB_UDP_SOCKET_PRIVATE_H_
 #define PPAPI_C_PRIVATE_PPB_UDP_SOCKET_PRIVATE_H_
@@ -29,7 +29,7 @@
  * @addtogroup Interfaces
  * @{
  */
-struct PPB_UDPSocket_Private {
+struct PPB_UDPSocket_Private_0_2 {
   /**
    * Creates a UDP socket resource.
    */
@@ -68,6 +68,8 @@ struct PPB_UDPSocket_Private {
   /* Cancels all pending reads and writes, and closes the socket. */
   void (*Close)(PP_Resource udp_socket);
 };
+
+typedef struct PPB_UDPSocket_Private_0_2 PPB_UDPSocket_Private;
 /**
  * @}
  */