Add OVERRIDE to base/.

base/message_pump_libevent.h

 // Copyright (c) 2011 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_
 #pragma once
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_pump.h"
 #include "base/observer_list.h"
 #include "base/threading/thread_checker.h"
 #include "base/time.h"
 
 // Declare structs we need from libevent.h rather than including it
 struct event_base;
 struct event;
 
@@ skipping 96 matching lines @@
   bool WatchFileDescriptor(int fd,
                            bool persistent,
                            Mode mode,
                            FileDescriptorWatcher *controller,
                            Watcher *delegate);
 
   void AddIOObserver(IOObserver* obs);
   void RemoveIOObserver(IOObserver* obs);
 
   // MessagePump methods:
-  virtual void Run(Delegate* delegate);
-  virtual void Quit();
-  virtual void ScheduleWork();
-  virtual void ScheduleDelayedWork(const TimeTicks& delayed_work_time);
+  virtual void Run(Delegate* delegate) OVERRIDE;
+  virtual void Quit() OVERRIDE;
+  virtual void ScheduleWork() OVERRIDE;
+  virtual void ScheduleDelayedWork(const TimeTicks& delayed_work_time) OVERRIDE;
 
  private:
   friend class MessagePumpLibeventTest;
 
   void WillProcessIOEvent();
   void DidProcessIOEvent();
 
   // Risky part of constructor.  Returns true on success.
   bool Init();
 
@@ skipping 29 matching lines @@
   event* wakeup_event_;
 
   ObserverList<IOObserver> io_observers_;
   ThreadChecker watch_file_descriptor_caller_checker_;
   DISALLOW_COPY_AND_ASSIGN(MessagePumpLibevent);
 };
 
 }  // namespace base
 
 #endif  // BASE_MESSAGE_PUMP_LIBEVENT_H_