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

ppapi/c/dev/ppb_font_dev.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 dev/ppb_font_dev.idl modified Wed Oct  5 19:40:26 2011. */
+/* From dev/ppb_font_dev.idl modified Tue Oct 11 10:01:39 2011. */
 
 #ifndef PPAPI_C_DEV_PPB_FONT_DEV_H_
 #define PPAPI_C_DEV_PPB_FONT_DEV_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_point.h"
 #include "ppapi/c/pp_rect.h"
 #include "ppapi/c/pp_resource.h"
@@ skipping 134 matching lines @@
 };
 PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_TextRun_Dev, 24);
 /**
  * @}
  */
 
 /**
  * @addtogroup Interfaces
  * @{
  */
-struct PPB_Font_Dev {
+struct PPB_Font_Dev_0_6 {
   /**
    * Returns a list of all available font families on the system. You can use
    * this list to decide whether to Create() a font.
    *
    * The return value will be a single string with null characters delimiting
    * the end of each font name. For example: "Arial\0Courier\0Times\0".
    *
    * Returns an undefined var on failure (this typically means you passed an
    * invalid instance).
    */
@@ skipping 73 matching lines @@
   /**
    * Returns the horizontal advance to the given character if the string was
    * placed at the given position. This handles complex scripts such as Arabic,
    * where characters may be combined or replaced depending on context. Returns
    * -1 on error.
    */
   int32_t (*PixelOffsetForCharacter)(PP_Resource font,
                                      const struct PP_TextRun_Dev* text,
                                      uint32_t char_offset);
 };
+
+typedef struct PPB_Font_Dev_0_6 PPB_Font_Dev;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_DEV_PPB_FONT_DEV_H_ */