Standardize usage of virtual/override/final in components/

components/copresence/mediums/audio/audio_player.h

 // Copyright 2014 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 COMPONENTS_COPRESENCE_MEDIUMS_AUDIO_AUDIO_PLAYER_H_
 #define COMPONENTS_COPRESENCE_MEDIUMS_AUDIO_AUDIO_PLAYER_H_
 
 #include <vector>
 
 #include "base/gtest_prod_util.h"
@@ skipping 29 matching lines @@
 
   bool IsPlaying();
 
   // Takes ownership of the stream.
   void set_output_stream_for_testing(
       media::AudioOutputStream* output_stream_for_testing) {
     output_stream_for_testing_.reset(output_stream_for_testing);
   }
 
  protected:
-  virtual ~AudioPlayer();
+  ~AudioPlayer() override;
   void set_is_playing(bool is_playing) { is_playing_ = is_playing; }
 
  private:
   friend class AudioPlayerTest;
   FRIEND_TEST_ALL_PREFIXES(AudioPlayerTest, BasicPlayAndStop);
   FRIEND_TEST_ALL_PREFIXES(AudioPlayerTest, OutOfOrderPlayAndStopMultiple);
 
   // Methods to do our various operations; all of these need to be run on the
   // audio thread.
   void InitializeOnAudioThread();
   void PlayOnAudioThread(
       const scoped_refptr<media::AudioBusRefCounted>& samples);
   void StopOnAudioThread();
   void StopAndCloseOnAudioThread();
   void FinalizeOnAudioThread();
 
   // AudioOutputStream::AudioSourceCallback overrides:
   // Following methods could be called from *ANY* thread.
-  virtual int OnMoreData(media::AudioBus* dest,
-                         uint32 total_bytes_delay) override;
-  virtual void OnError(media::AudioOutputStream* stream) override;
+  int OnMoreData(media::AudioBus* dest, uint32 total_bytes_delay) override;
+  void OnError(media::AudioOutputStream* stream) override;
 
   // Flushes the audio loop, making sure that any queued operations are
   // performed.
   void FlushAudioLoopForTesting();
 
   bool is_playing_;
 
   // Self-deleting object.
   media::AudioOutputStream* stream_;
 
   scoped_ptr<media::AudioOutputStream> output_stream_for_testing_;
 
   // All fields below here are protected by this lock.
   base::Lock state_lock_;
 
   scoped_refptr<media::AudioBusRefCounted> samples_;
 
   // Index to the frame in the samples that we need to play next.
   int frame_index_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioPlayer);
 };
 
 }  // namespace copresence
 
 #endif  // COMPONENTS_COPRESENCE_MEDIUMS_AUDIO_AUDIO_PLAYER_H_