use variadic macros/templates in IPC message implementation

tools/ipc_fuzzer/message_lib/message_names.cc

 // Copyright 2013 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 "tools/ipc_fuzzer/message_lib/message_names.h"
 #include "tools/ipc_fuzzer/message_lib/all_messages.h"
 
 #include "tools/ipc_fuzzer/message_lib/all_message_null_macros.h"
 #undef IPC_MESSAGE_DECL
-#define IPC_MESSAGE_DECL(kind, type, name, in, out, ilist, olist) \
+#define IPC_MESSAGE_DECL(name, ...) \
   names.Add(static_cast<uint32_t>(name::ID), #name);
 
 void PopulateIpcMessageNames(ipc_fuzzer::MessageNames& names) {
 #include "tools/ipc_fuzzer/message_lib/all_messages.h"
 }
 
 namespace ipc_fuzzer {
 
 // static
 MessageNames* MessageNames::all_names_ = NULL;
 
 MessageNames::MessageNames() {
 }
 
 MessageNames::~MessageNames() {
 }
 
 // static
 MessageNames* MessageNames::GetInstance() {
   if (!all_names_) {
     all_names_ = new MessageNames();
     PopulateIpcMessageNames(*all_names_);
   }
   return all_names_;
 }
 
 }  // namespace ipc_fuzzer