Standardize usage of virtual/override/final in media/

media/audio/mac/audio_manager_mac.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_MAC_AUDIO_MANAGER_MAC_H_
 #define MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_
 
 #include <CoreAudio/AudioHardware.h>
 #include <list>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "media/audio/audio_manager_base.h"
 #include "media/audio/mac/audio_device_listener_mac.h"
 
 namespace media {
 
 // Mac OS X implementation of the AudioManager singleton. This class is internal
 // to the audio output and only internal users can call methods not exposed by
 // the AudioManager class.
 class MEDIA_EXPORT AudioManagerMac : public AudioManagerBase {
  public:
   AudioManagerMac(AudioLogFactory* audio_log_factory);
 
   // Implementation of AudioManager.
-  virtual bool HasAudioOutputDevices() override;
-  virtual bool HasAudioInputDevices() override;
-  virtual void GetAudioInputDeviceNames(
-      AudioDeviceNames* device_names) override;
-  virtual void GetAudioOutputDeviceNames(
-      AudioDeviceNames* device_names) override;
-  virtual AudioParameters GetInputStreamParameters(
+  bool HasAudioOutputDevices() override;
+  bool HasAudioInputDevices() override;
+  void GetAudioInputDeviceNames(AudioDeviceNames* device_names) override;
+  void GetAudioOutputDeviceNames(AudioDeviceNames* device_names) override;
+  AudioParameters GetInputStreamParameters(
       const std::string& device_id) override;
-  virtual std::string GetAssociatedOutputDeviceID(
+  std::string GetAssociatedOutputDeviceID(
       const std::string& input_device_id) override;
 
   // Implementation of AudioManagerBase.
-  virtual AudioOutputStream* MakeLinearOutputStream(
+  AudioOutputStream* MakeLinearOutputStream(
       const AudioParameters& params) override;
-  virtual AudioOutputStream* MakeLowLatencyOutputStream(
+  AudioOutputStream* MakeLowLatencyOutputStream(
       const AudioParameters& params,
       const std::string& device_id) override;
-  virtual AudioInputStream* MakeLinearInputStream(
-      const AudioParameters& params, const std::string& device_id) override;
-  virtual AudioInputStream* MakeLowLatencyInputStream(
-      const AudioParameters& params, const std::string& device_id) override;
-  virtual std::string GetDefaultOutputDeviceID() override;
+  AudioInputStream* MakeLinearInputStream(
+      const AudioParameters& params,
+      const std::string& device_id) override;
+  AudioInputStream* MakeLowLatencyInputStream(
+      const AudioParameters& params,
+      const std::string& device_id) override;
+  std::string GetDefaultOutputDeviceID() override;
 
   // Used to track destruction of input and output streams.
-  virtual void ReleaseOutputStream(AudioOutputStream* stream) override;
-  virtual void ReleaseInputStream(AudioInputStream* stream) override;
+  void ReleaseOutputStream(AudioOutputStream* stream) override;
+  void ReleaseInputStream(AudioInputStream* stream) override;
 
   static bool GetDefaultInputDevice(AudioDeviceID* device);
   static bool GetDefaultOutputDevice(AudioDeviceID* device);
   static bool GetDefaultDevice(AudioDeviceID* device, bool input);
 
   static bool GetDefaultOutputChannels(int* channels);
 
   static bool GetDeviceChannels(AudioDeviceID device,
                                 AudioObjectPropertyScope scope,
                                 int* channels);
 
   static int HardwareSampleRateForDevice(AudioDeviceID device_id);
   static int HardwareSampleRate();
 
   // OSX has issues with starting streams as the sytem goes into suspend and
   // immediately after it wakes up from resume.  See http://crbug.com/160920.
   // As a workaround we delay Start() when it occurs after suspend and for a
   // small amount of time after resume.
   //
   // Streams should consult ShouldDeferStreamStart() and if true check the value
   // again after |kStartDelayInSecsForPowerEvents| has elapsed. If false, the
   // stream may be started immediately.
   enum { kStartDelayInSecsForPowerEvents = 1 };
   bool ShouldDeferStreamStart();
 
  protected:
-  virtual ~AudioManagerMac();
+  ~AudioManagerMac() override;
 
-  virtual AudioParameters GetPreferredOutputStreamParameters(
+  AudioParameters GetPreferredOutputStreamParameters(
       const std::string& output_device_id,
       const AudioParameters& input_params) override;
 
  private:
   void InitializeOnAudioThread();
   void ShutdownOnAudioThread();
 
   int ChooseBufferSize(int output_sample_rate);
 
   // Notify streams of a device change if the default output device or its
@@ skipping 17 matching lines @@
   // shutdown.  See ShutdownOnAudioThread() for more details.
   std::list<AudioInputStream*> input_streams_;
   std::list<AudioOutputStream*> output_streams_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioManagerMac);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_