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diff --git a/ipc/chromium/src/base/message_pump_default.h b/ipc/chromium/src/base/message_pump_default.h
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+++ b/ipc/chromium/src/base/message_pump_default.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+// Copyright (c) 2006-2008 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 BASE_MESSAGE_PUMP_DEFAULT_H_
+#define BASE_MESSAGE_PUMP_DEFAULT_H_
+
+#include "base/message_pump.h"
+#include "base/time.h"
+#include "base/waitable_event.h"
+
+namespace base {
+
+class MessagePumpDefault : public MessagePump {
+ public:
+  MessagePumpDefault();
+  ~MessagePumpDefault() {}
+
+  // MessagePump methods:
+  virtual void Run(Delegate* delegate);
+  virtual void Quit();
+  virtual void ScheduleWork();
+  virtual void ScheduleDelayedWork(const TimeTicks& delayed_work_time);
+
+ protected:
+  // This flag is set to false when Run should return.
+  bool keep_running_;
+
+  // Used to sleep until there is more work to do.
+  WaitableEvent event_;
+
+  // The time at which we should call DoDelayedWork.
+  TimeTicks delayed_work_time_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MessagePumpDefault);
+};
+
+}  // namespace base
+
+#endif  // BASE_MESSAGE_PUMP_DEFAULT_H_