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diff --git a/base/message_loop/message_pump_ozone.h b/base/message_loop/message_pump_ozone.h
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+++ b/base/message_loop/message_pump_ozone.h
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+// Copyright (c) 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 BASE_MESSAGE_LOOP_MESSAGE_PUMP_OZONE_H_
+#define BASE_MESSAGE_LOOP_MESSAGE_PUMP_OZONE_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/scoped_vector.h"
+#include "base/message_loop/message_pump_dispatcher.h"
+#include "base/message_loop/message_pump_libevent.h"
+#include "base/message_loop/message_pump_observer.h"
+#include "base/observer_list.h"
+
+namespace base {
+
+// This class implements a message-pump for processing events from input devices
+// Refer to MessagePump for further documentation.
+class BASE_EXPORT MessagePumpOzone : public MessagePumpLibevent,
+                                     public MessagePumpDispatcher {
+ public:
+  MessagePumpOzone();
+
+  // Returns the UI message pump.
+  static MessagePumpOzone* Current();
+
+  // Add/Remove the root window dispatcher.
+  void AddDispatcherForRootWindow(MessagePumpDispatcher* dispatcher);
+  void RemoveDispatcherForRootWindow(MessagePumpDispatcher* dispatcher);
+
+  void RunWithDispatcher(Delegate* delegate, MessagePumpDispatcher* dispatcher);
+
+  // Add / remove an Observer, which will start receiving notifications
+  // immediately.
+  void AddObserver(MessagePumpObserver* observer);
+  void RemoveObserver(MessagePumpObserver* observer);
+
+  // Overridden from MessagePumpDispatcher.
+  virtual bool Dispatch(const NativeEvent& event) OVERRIDE;
+
+ private:
+  virtual ~MessagePumpOzone();
+  std::vector<MessagePumpDispatcher*> dispatcher_;
+
+  DISALLOW_COPY_AND_ASSIGN(MessagePumpOzone);
+};
+
+typedef MessagePumpOzone MessagePumpForUI;
+
+}  // namespace base
+
+#endif  // BASE_MESSAGE_LOOP_MESSAGE_PUMP_OZONE_H_