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

ppapi/examples/2d/graphics_2d_example.c

 /* 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.
  */
 #include <stdlib.h>
 #include <string.h>
 
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/c/ppb.h"
 #include "ppapi/c/ppb_core.h"
 #include "ppapi/c/ppb_graphics_2d.h"
 #include "ppapi/c/ppb_image_data.h"
 #include "ppapi/c/ppb_instance.h"
 #include "ppapi/c/ppp.h"
 #include "ppapi/c/ppp_instance.h"
 
 PPB_GetInterface g_get_browser_interface = NULL;
 
-const struct PPB_Core* g_core_interface;
-const struct PPB_Graphics2D* g_graphics_2d_interface;
-const struct PPB_ImageData* g_image_data_interface;
-const struct PPB_Instance* g_instance_interface;
+const PPB_Core* g_core_interface;
+const PPB_Graphics2D* g_graphics_2d_interface;
+const PPB_ImageData* g_image_data_interface;
+const PPB_Instance* g_instance_interface;
 
 /* PPP_Instance implementation -----------------------------------------------*/
 
 struct InstanceInfo {
   PP_Instance pp_instance;
   struct PP_Size last_size;
 
   struct InstanceInfo* next;
 };
 
@@ skipping 117 matching lines @@
 }
 
 void Instance_DidChangeFocus(PP_Instance pp_instance, PP_Bool has_focus) {
 }
 
 PP_Bool Instance_HandleDocumentLoad(PP_Instance pp_instance,
                                     PP_Resource pp_url_loader) {
   return PP_FALSE;
 }
 
-static struct PPP_Instance instance_interface = {
+static PPP_Instance instance_interface = {
   &Instance_DidCreate,
   &Instance_DidDestroy,
   &Instance_DidChangeView,
   &Instance_DidChangeFocus,
   &Instance_HandleDocumentLoad
 };
 
 
 /* Global entrypoints --------------------------------------------------------*/
 
 PP_EXPORT int32_t PPP_InitializeModule(PP_Module module,
                                        PPB_GetInterface get_browser_interface) {
   g_get_browser_interface = get_browser_interface;
 
-  g_core_interface = (const struct PPB_Core*)
+  g_core_interface = (const PPB_Core*)
       get_browser_interface(PPB_CORE_INTERFACE);
-  g_instance_interface = (const struct PPB_Instance*)
+  g_instance_interface = (const PPB_Instance*)
       get_browser_interface(PPB_INSTANCE_INTERFACE);
-  g_image_data_interface = (const struct PPB_ImageData*)
+  g_image_data_interface = (const PPB_ImageData*)
       get_browser_interface(PPB_IMAGEDATA_INTERFACE);
-  g_graphics_2d_interface = (const struct PPB_Graphics2D*)
+  g_graphics_2d_interface = (const PPB_Graphics2D*)
       get_browser_interface(PPB_GRAPHICS_2D_INTERFACE);
   if (!g_core_interface || !g_instance_interface || !g_image_data_interface ||
       !g_graphics_2d_interface)
     return -1;
 
   return PP_OK;
 }
 
 PP_EXPORT void PPP_ShutdownModule() {
 }
 
 PP_EXPORT const void* PPP_GetInterface(const char* interface_name) {
   if (strcmp(interface_name, PPP_INSTANCE_INTERFACE) == 0)
     return &instance_interface;
   return NULL;
 }
-