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

ppapi/c/dev/ppb_transport_dev.h

Index: ppapi/c/dev/ppb_transport_dev.h
diff --git a/ppapi/c/dev/ppb_transport_dev.h b/ppapi/c/dev/ppb_transport_dev.h
index 8363f4928b5c9c1fb4ab7fa6d9698be1d25caced..6f1f0f00b021f4226b01d4c3151f51400e0edb69 100644
--- a/ppapi/c/dev/ppb_transport_dev.h
+++ b/ppapi/c/dev/ppb_transport_dev.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From dev/ppb_transport_dev.idl modified Tue Oct  4 15:52:58 2011. */
+/* From dev/ppb_transport_dev.idl modified Wed Oct  5 14:06:02 2011. */
 
 #ifndef PPAPI_C_DEV_PPB_TRANSPORT_DEV_H_
 #define PPAPI_C_DEV_PPB_TRANSPORT_DEV_H_
@@ -111,7 +111,7 @@ PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_TransportRelayMode, 4);
  * connect type, protocol
  * RTT
  */
-struct PPB_Transport_Dev {
+struct PPB_Transport_Dev_0_7 {
   /**
    * Creates a new transport object with the specified name using the
    * specified protocol.
@@ -176,6 +176,8 @@ struct PPB_Transport_Dev {
    */
   int32_t (*Close)(PP_Resource transport);
 };
+
+typedef struct PPB_Transport_Dev_0_7 PPB_Transport_Dev;
 /**
  * @}
  */