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

ppapi/native_client/src/trusted/plugin/browser_interface.cc

 // 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 <assert.h>
 
 #include "native_client/src/trusted/plugin/browser_interface.h"
 
 #include "native_client/src/include/checked_cast.h"
 #include "native_client/src/include/elf.h"
@@ skipping 27 matching lines @@
   assert(identifier_to_string_map_.find(ident) !=
          identifier_to_string_map_.end());
   return identifier_to_string_map_[ident];
 }
 
 
 void BrowserInterface::AddToConsole(pp::InstancePrivate* instance,
                                     const nacl::string& text) {
   pp::Module* module = pp::Module::Get();
   const PPB_Var* var_interface =
-      static_cast<const struct PPB_Var*>(
+      static_cast<const PPB_Var*>(
           module->GetBrowserInterface(PPB_VAR_INTERFACE));
   nacl::string prefix_string("NativeClient");
   PP_Var prefix =
       var_interface->VarFromUtf8(prefix_string.c_str(),
                                  static_cast<uint32_t>(prefix_string.size()));
   PP_Var str = var_interface->VarFromUtf8(text.c_str(),
                                           static_cast<uint32_t>(text.size()));
   const PPB_Console_Dev* console_interface =
-      static_cast<const struct PPB_Console_Dev*>(
+      static_cast<const PPB_Console_Dev*>(
           module->GetBrowserInterface(PPB_CONSOLE_DEV_INTERFACE));
   console_interface->LogWithSource(instance->pp_instance(),
                                    PP_LOGLEVEL_LOG,
                                    prefix,
                                    str);
   var_interface->Release(prefix);
   var_interface->Release(str);
 }
 
 }  // namespace plugin