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

ppapi/c/dev/ppp_widget_dev.h

Index: ppapi/c/dev/ppp_widget_dev.h
diff --git a/ppapi/c/dev/ppp_widget_dev.h b/ppapi/c/dev/ppp_widget_dev.h
index d1fd778722f5bfccfdccbe075e8174efae1dca35..92da5197f825ebf1366872e49576014c47e2b3e0 100644
--- a/ppapi/c/dev/ppp_widget_dev.h
+++ b/ppapi/c/dev/ppp_widget_dev.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From dev/ppp_widget_dev.idl modified Fri Aug 26 17:59:12 2011. */
+/* From dev/ppp_widget_dev.idl modified Wed Oct  5 14:06:02 2011. */
 
 #ifndef PPAPI_C_DEV_PPP_WIDGET_DEV_H_
 #define PPAPI_C_DEV_PPP_WIDGET_DEV_H_
@@ -32,7 +32,7 @@
 /**
  * The interface for reusing browser widgets.
  */
-struct PPP_Widget_Dev {
+struct PPP_Widget_Dev_0_2 {
   /**
    * Informs the instance that the given rectangle needs to be repainted.
    */
@@ -40,6 +40,8 @@ struct PPP_Widget_Dev {
                      PP_Resource widget,
                      const struct PP_Rect* dirty_rect);
 };
+
+typedef struct PPP_Widget_Dev_0_2 PPP_Widget_Dev;
 /**
  * @}
  */