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

ppapi/c/ppb_url_loader.h

Index: ppapi/c/ppb_url_loader.h
diff --git a/ppapi/c/ppb_url_loader.h b/ppapi/c/ppb_url_loader.h
index 1ee7080aa2051ab8603e558fddc7a3b2b806ffaf..a304722481faf56569deb19e37e1a0d83165ebf2 100644
--- a/ppapi/c/ppb_url_loader.h
+++ b/ppapi/c/ppb_url_loader.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From ppb_url_loader.idl modified Mon Aug 29 10:11:34 2011. */
+/* From ppb_url_loader.idl modified Wed Oct  5 14:06:02 2011. */
 
 #ifndef PPAPI_C_PPB_URL_LOADER_H_
 #define PPAPI_C_PPB_URL_LOADER_H_
@@ -48,7 +48,7 @@
  * - Then, access the downloaded file using the GetBodyAsFileRef() function of
  * the <code>URLResponseInfo</code> returned in step #4.
  */
-struct PPB_URLLoader {
+struct PPB_URLLoader_1_0 {
   /**
    * Create() creates a new <code>URLLoader</code> object. The
    * <code>URLLoader</code> is associated with a particular instance, so that
@@ -216,6 +216,8 @@ struct PPB_URLLoader {
    */
   void (*Close)(PP_Resource loader);
 };
+
+typedef struct PPB_URLLoader_1_0 PPB_URLLoader;
 /**
  * @}
  */