Add OVERRIDE to chrome/browser/chromeos/.

chrome/browser/chromeos/audio_mixer_alsa.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 CHROME_BROWSER_CHROMEOS_AUDIO_MIXER_ALSA_H_
 #define CHROME_BROWSER_CHROMEOS_AUDIO_MIXER_ALSA_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback_old.h"
+#include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "chrome/browser/chromeos/audio_mixer.h"
 
 class PrefService;
 
 struct _snd_mixer_elem;
 struct _snd_mixer;
 
 namespace chromeos {
 
 // Simple wrapper around ALSA's mixer functions.
 // Interaction with ALSA takes place on a background thread.
 class AudioMixerAlsa : public AudioMixer {
  public:
   AudioMixerAlsa();
   virtual ~AudioMixerAlsa();
 
   // AudioMixer implementation.
-  virtual void Init();
-  virtual bool IsInitialized();
-  virtual void GetVolumeLimits(double* min_volume_db, double* max_volume_db);
-  virtual double GetVolumeDb();
-  virtual void SetVolumeDb(double volume_db);
-  virtual bool IsMuted();
-  virtual void SetMuted(bool muted);
+  virtual void Init() OVERRIDE;
+  virtual bool IsInitialized() OVERRIDE;
+  virtual void GetVolumeLimits(double* min_volume_db,
+                               double* max_volume_db) OVERRIDE;
+  virtual double GetVolumeDb() OVERRIDE;
+  virtual void SetVolumeDb(double volume_db) OVERRIDE;
+  virtual bool IsMuted() OVERRIDE;
+  virtual void SetMuted(bool muted) OVERRIDE;
 
   // Registers volume and mute preferences.
   // TODO(derat): Move prefs into AudioHandler.
   static void RegisterPrefs(PrefService* local_state);
 
  private:
   // Tries to connect to ALSA.  On failure, posts a delayed Connect() task to
   // try again.
   void Connect();
 
@@ skipping 70 matching lines @@
   int num_connection_attempts_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioMixerAlsa);
 };
 
 }  // namespace chromeos
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(chromeos::AudioMixerAlsa);
 
 #endif  // CHROME_BROWSER_CHROMEOS_AUDIO_MIXER_ALSA_H_