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

ppapi/c/ppb_image_data.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_image_data.idl modified Tue Nov  8 15:46:54 2011. */
+/* From ppb_image_data.idl modified Wed Dec 21 19:08:34 2011. */
 
 #ifndef PPAPI_C_PPB_IMAGE_DATA_H_
 #define PPAPI_C_PPB_IMAGE_DATA_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/pp_stdint.h"
@@ skipping 81 matching lines @@
  */
 
 /**
  * @addtogroup Interfaces
  * @{
  */
 /**
  * The <code>PPB_ImageData</code> interface contains pointers to several
  * functions for determining the browser's treatment of image data.
  */
-struct PPB_ImageData {
+struct PPB_ImageData_1_0 {
   /**
    * GetNativeImageDataFormat() returns the browser's preferred format for
    * image data. The browser uses this format internally for painting. Other
    * formats may require internal conversions to paint or may have additional
    * restrictions depending on the function.
    *
    * @return A <code>PP_ImageDataFormat</code> containing the preferred format.
    */
   PP_ImageDataFormat (*GetNativeImageDataFormat)();
   /**
@@ skipping 69 matching lines @@
   void* (*Map)(PP_Resource image_data);
   /**
    * Unmap is a pointer to a function that unmaps an image data from the module
    * address space.
    *
    * @param[in] image_data A <code>PP_Resource</code> corresponding to image
    * data.
    */
   void (*Unmap)(PP_Resource image_data);
 };
+
+typedef struct PPB_ImageData_1_0 PPB_ImageData;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PPB_IMAGE_DATA_H_ */