Standardize usage of virtual/override/final in media/

media/audio/audio_input_controller.h

 // Copyright (c) 2012 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 MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_
 #define MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_
 
 #include <string>
 #include "base/atomicops.h"
 #include "base/callback.h"
@@ skipping 209 matching lines @@
   // Sets the capture volume of the input stream. The value 0.0 corresponds
   // to muted and 1.0 to maximum volume.
   virtual void SetVolume(double volume);
 
   // Sets the Automatic Gain Control (AGC) state of the input stream.
   // Changing the AGC state is not supported while recording is active.
   virtual void SetAutomaticGainControl(bool enabled);
 
   // AudioInputCallback implementation. Threading details depends on the
   // device-specific implementation.
-  virtual void OnData(AudioInputStream* stream,
-                      const AudioBus* source,
-                      uint32 hardware_delay_bytes,
-                      double volume) override;
-  virtual void OnError(AudioInputStream* stream) override;
+  void OnData(AudioInputStream* stream,
+              const AudioBus* source,
+              uint32 hardware_delay_bytes,
+              double volume) override;
+  void OnError(AudioInputStream* stream) override;
 
   bool SharedMemoryAndSyncSocketMode() const { return sync_writer_ != NULL; }
 
  protected:
   friend class base::RefCountedThreadSafe<AudioInputController>;
 
   // Internal state of the source.
   enum State {
     CREATED,
     RECORDING,
@@ skipping 16 matching lines @@
     SILENCE_STATE_ONLY_AUDIO = 1,
     SILENCE_STATE_ONLY_SILENCE = 2,
     SILENCE_STATE_AUDIO_AND_SILENCE = 3,
     SILENCE_STATE_MAX = SILENCE_STATE_AUDIO_AND_SILENCE
   };
 #endif
 
   AudioInputController(EventHandler* handler,
                        SyncWriter* sync_writer,
                        UserInputMonitor* user_input_monitor);
-  virtual ~AudioInputController();
+  ~AudioInputController() override;
 
   // Methods called on the audio thread (owned by the AudioManager).
   void DoCreate(AudioManager* audio_manager,
                 const AudioParameters& params,
                 const std::string& device_id);
   void DoCreateForLowLatency(AudioManager* audio_manager,
                              const AudioParameters& params,
                              const std::string& device_id);
   void DoCreateForStream(AudioInputStream* stream_to_control);
   void DoRecord();
@@ skipping 87 matching lines @@
 
   // Time when a low-latency stream is created.
   base::TimeTicks low_latency_create_time_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioInputController);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_