IPC fuzzer: create message_lib library.

tools/ipc_fuzzer/message_lib/message_file.h

+// 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.
+
+#ifndef TOOLS_IPC_FUZZER_MESSAGE_LIB_MESSAGE_FILE_H_
+#define TOOLS_IPC_FUZZER_MESSAGE_LIB_MESSAGE_FILE_H_
+
+#include "base/files/file_path.h"
+#include "base/memory/scoped_vector.h"
+#include "ipc/ipc_message.h"
+
+namespace ipc_fuzzer {
+
+typedef ScopedVector<IPC::Message> MessageVector;
+
+class MessageFile {
+ public:
+  static bool Read(const base::FilePath& path, MessageVector* messages);
+  static bool Write(const base::FilePath& path, const MessageVector& messages);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MessageFile);
+};
+
+}  // namespace ipc_fuzzer
+
+#endif  // TOOLS_IPC_FUZZER_MESSAGE_LIB_MESSAGE_FILE_H_