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

webkit/plugins/ppapi/ppb_websocket_impl.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.
 
 #ifndef WEBKIT_PLUGINS_PPAPI_PPB_WEBSOCKET_IMPL_H_
 #define WEBKIT_PLUGINS_PPAPI_PPB_WEBSOCKET_IMPL_H_
 
 #include <queue>
 
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/thunk/ppb_websocket_api.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSocketClient.h"
 
-struct PPB_Var;
-
 namespace ppapi {
 class StringVar;
 }
 
 namespace WebKit {
 class WebSocket;
 }
 
 namespace webkit {
 namespace ppapi {
@@ skipping 70 matching lines @@
   uint64_t buffered_amount_;
   uint64_t buffered_amount_after_close_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_WebSocket_Impl);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPB_WEBSOCKET_IMPL_H_