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

ppapi/c/ppb_core.h

 /* Copyright (c) 2011 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-/* From ppb_core.idl modified Tue Aug 23 11:13:37 2011. */
+/* From ppb_core.idl modified Wed Oct  5 14:06:02 2011. */
 
 #ifndef PPAPI_C_PPB_CORE_H_
 #define PPAPI_C_PPB_CORE_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/c/pp_time.h"
@@ skipping 11 matching lines @@
 
 /**
  * @addtogroup Interfaces
  * @{
  */
 /**
  * The <code>PPB_Core</code> interface contains pointers to functions related
  * to memory management, time, and threads on the browser.
  *
  */
-struct PPB_Core {
+struct PPB_Core_1_0 {
   /**
    *
    * AddRefResource() adds a reference to a resource.
    *
    * @param[in] config A <code>PP_Resource</code> corresponding to a
    * resource.
    */
   void (*AddRefResource)(PP_Resource resource);
   /**
    * ReleaseResource() removes a reference from a resource.
@@ skipping 53 matching lines @@
    * thread.
    *
    * This function is useful for implementing sanity checks, and deciding if
    * dispatching using CallOnMainThread() is required.
    *
    * @return A <code>PP_Bool</code> containing <code>PP_TRUE</code> if the
    * current thread is the main pepper thread, otherwise <code>PP_FALSE</code>.
    */
   PP_Bool (*IsMainThread)();
 };
+
+typedef struct PPB_Core_1_0 PPB_Core;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PPB_CORE_H_ */