Make tcp_client_socket_unittest pass on Linux....

base/message_pump_libevent.h

Index: base/message_pump_libevent.h
===================================================================
--- base/message_pump_libevent.h	(revision 0)
+++ base/message_pump_libevent.h	(revision 0)
@@ -0,0 +1,54 @@
+// 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_LIBEVENT_H_
+#define BASE_MESSAGE_PUMP_LIBEVENT_H_
+
+#include "base/message_pump.h"
+#include "base/time.h"
+
+// from libevent
+struct event_base;
+struct event;
+
+namespace base {
+
+class MessagePumpLibevent : public MessagePump {
+ public:
+  MessagePumpLibevent();
+  virtual ~MessagePumpLibevent();
+
+  // MessagePump methods:
+  virtual void Run(Delegate* delegate);
+  virtual void Quit();
+  virtual void ScheduleWork();
+  virtual void ScheduleDelayedWork(const Time& delayed_work_time);
+
+  struct event_base* getEventbase() { return evbase_; }
+
+ private:
+  // This flag is set to false when Run should return.
+  bool keep_running_;
+
+  // The time at which we should call DoDelayedWork.
+  Time delayed_work_time_;
+
+  // Wakeup pipe to let other threads break us out of libevent loop.
+  int wakeup_pipe_gazinta_;
+  // need to fix friendship.
+public:
+  int wakeup_pipe_gazouta_;
+
+  // Libevent dispatcher
+  ::event_base *evbase_;
+private:
+  struct event *wakeup_event_;
+
+  DISALLOW_COPY_AND_ASSIGN(MessagePumpLibevent);
+};
+
+}  // namespace base
+
+#endif  // BASE_MESSAGE_PUMP_LIBEVENT_H_
+