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

ppapi/c/private/ppb_net_address_private.h

Index: ppapi/c/private/ppb_net_address_private.h
diff --git a/ppapi/c/private/ppb_net_address_private.h b/ppapi/c/private/ppb_net_address_private.h
index 465cbd33efc94b8fb79d2a57145255007a489072..949cc1c5d2363733aa03ff6f74908e0cd2d3a28b 100644
--- a/ppapi/c/private/ppb_net_address_private.h
+++ b/ppapi/c/private/ppb_net_address_private.h
@@ -4,7 +4,7 @@
  */
 
 /* From private/ppb_net_address_private.idl,
- *   modified Wed Jan  4 09:10:03 2012.
+ *   modified Wed Jan  4 11:09:00 2012.
  */
 
 #ifndef PPAPI_C_PRIVATE_PPB_NET_ADDRESS_PRIVATE_H_
@@ -49,7 +49,7 @@ PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_NetAddress_Private, 132);
  * The <code>PPB_NetAddress_Private</code> interface provides operations on
  * network addresses.
  */
-struct PPB_NetAddress_Private {
+struct PPB_NetAddress_Private_0_1 {
   /**
    * Returns PP_TRUE if the two addresses are equal (host and port).
    */
@@ -79,6 +79,8 @@ struct PPB_NetAddress_Private {
    */
   void (*GetAnyAddress)(PP_Bool is_ipv6, struct PP_NetAddress_Private* addr);
 };
+
+typedef struct PPB_NetAddress_Private_0_1 PPB_NetAddress_Private;
 /**
  * @}
  */