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diff --git a/ipc/chromium/src/base/message_pump_qt.h b/ipc/chromium/src/base/message_pump_qt.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) 2010 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_QT_H_
+#define BASE_MESSAGE_PUMP_QT_H_
+
+#include <qobject.h>
+
+#include "base/message_pump.h"
+#include "base/time.h"
+
+class QTimer;
+
+namespace base {
+
+class MessagePumpForUI;
+
+class MessagePumpQt : public QObject {
+ Q_OBJECT
+
+ public:
+ MessagePumpQt(MessagePumpForUI &pump);
+ ~MessagePumpQt();
+
+ virtual bool event (QEvent *e);
+ void scheduleDelayedIfNeeded(const TimeTicks& delayed_work_time);
+
+ public Q_SLOTS:
+ void dispatchDelayed();
+
+ private:
+ base::MessagePumpForUI &pump;
+ QTimer* mTimer;
+};
+
+// This class implements a MessagePump needed for TYPE_UI MessageLoops on
+// OS_LINUX platforms using QApplication event loop
+class MessagePumpForUI : public MessagePump {
+
+ public:
+ MessagePumpForUI();
+ ~MessagePumpForUI();
+
+ virtual void Run(Delegate* delegate);
+ virtual void Quit();
+ virtual void ScheduleWork();
+ virtual void ScheduleDelayedWork(const TimeTicks& delayed_work_time);
+
+ // Internal methods used for processing the pump callbacks. They are
+ // public for simplicity but should not be used directly.
+ // HandleDispatch is called after the poll has completed.
+ void HandleDispatch();
+
+ private:
+ // We may make recursive calls to Run, so we save state that needs to be
+ // separate between them in this structure type.
+ struct RunState {
+ Delegate* delegate;
+
+ // Used to flag that the current Run() invocation should return ASAP.
+ bool should_quit;
+
+ // Used to count how many Run() invocations are on the stack.
+ int run_depth;
+ };
+
+ RunState* state_;
+
+ // This is the time when we need to do delayed work.
+ TimeTicks delayed_work_time_;
+
+ // MessagePump implementation for Qt based on the GLib implement.
+ // On Qt we use a QObject base class and the
+ // default qApp in order to process events through QEventLoop.
+ MessagePumpQt qt_pump;
+
+ DISALLOW_COPY_AND_ASSIGN(MessagePumpForUI);
+};
+
+} // namespace base
+
+#endif // BASE_MESSAGE_PUMP_QT_H_