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

ppapi/c/ppp_input_event.h

Index: ppapi/c/ppp_input_event.h
diff --git a/ppapi/c/ppp_input_event.h b/ppapi/c/ppp_input_event.h
index 4f0710627106d54239ad76bc6148177fb915efb0..e113e4c85bef7824a78ff9ef73c2690e976dbafa 100644
--- a/ppapi/c/ppp_input_event.h
+++ b/ppapi/c/ppp_input_event.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From ppp_input_event.idl modified Thu Dec 15 12:44:27 2011. */
+/* From ppp_input_event.idl modified Mon Dec 19 18:08:45 2011. */
 
 #ifndef PPAPI_C_PPP_INPUT_EVENT_H_
 #define PPAPI_C_PPP_INPUT_EVENT_H_
@@ -27,7 +27,7 @@
  * @addtogroup Interfaces
  * @{
  */
-struct PPP_InputEvent {
+struct PPP_InputEvent_0_1 {
   /**
    * Function for receiving input events from the browser.
    *
@@ -74,6 +74,8 @@ struct PPP_InputEvent {
    */
   PP_Bool (*HandleInputEvent)(PP_Instance instance, PP_Resource input_event);
 };
+
+typedef struct PPP_InputEvent_0_1 PPP_InputEvent;
 /**
  * @}
  */