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 68fbaae80344159c3eaf2df2105bc81d03860a9d..25ae0fa541994fce6ea2a0e814e06defb39d2c81 100644
--- a/ppapi/c/private/ppb_net_address_private.h
+++ b/ppapi/c/private/ppb_net_address_private.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From private/ppb_net_address_private.idl modified Wed Nov  9 12:53:35 2011. */
+/* From private/ppb_net_address_private.idl modified Thu Nov 10 10:21:43 2011. */
 
 #ifndef PPAPI_C_PRIVATE_PPB_NET_ADDRESS_PRIVATE_H_
 #define PPAPI_C_PRIVATE_PPB_NET_ADDRESS_PRIVATE_H_
@@ -47,7 +47,7 @@ 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).
    */
@@ -77,6 +77,8 @@ 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;
 /**
  * @}
  */