Standardize usage of virtual/override/final in media/

media/audio/audio_input_device.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.
 
 // Low-latency audio capturing class utilizing audio input stream provided
 // by a server (browser) process by use of an IPC interface.
 //
 // Relationship of classes:
 //
 //  AudioInputController                 AudioInputDevice
@@ skipping 67 matching lines @@
     : NON_EXPORTED_BASE(public AudioCapturerSource),
       NON_EXPORTED_BASE(public AudioInputIPCDelegate),
       NON_EXPORTED_BASE(public ScopedTaskRunnerObserver) {
  public:
   // NOTE: Clients must call Initialize() before using.
   AudioInputDevice(
       scoped_ptr<AudioInputIPC> ipc,
       const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
 
   // AudioCapturerSource implementation.
-  virtual void Initialize(const AudioParameters& params,
-                          CaptureCallback* callback,
-                          int session_id) override;
-  virtual void Start() override;
-  virtual void Stop() override;
-  virtual void SetVolume(double volume) override;
-  virtual void SetAutomaticGainControl(bool enabled) override;
+  void Initialize(const AudioParameters& params,
+                  CaptureCallback* callback,
+                  int session_id) override;
+  void Start() override;
+  void Stop() override;
+  void SetVolume(double volume) override;
+  void SetAutomaticGainControl(bool enabled) override;
 
  protected:
   friend class base::RefCountedThreadSafe<AudioInputDevice>;
-  virtual ~AudioInputDevice();
+  ~AudioInputDevice() override;
 
   // Methods called on IO thread ----------------------------------------------
   // AudioInputIPCDelegate implementation.
-  virtual void OnStreamCreated(base::SharedMemoryHandle handle,
-                               base::SyncSocket::Handle socket_handle,
-                               int length,
-                               int total_segments) override;
-  virtual void OnVolume(double volume) override;
-  virtual void OnStateChanged(
-      AudioInputIPCDelegate::State state) override;
-  virtual void OnIPCClosed() override;
+  void OnStreamCreated(base::SharedMemoryHandle handle,
+                       base::SyncSocket::Handle socket_handle,
+                       int length,
+                       int total_segments) override;
+  void OnVolume(double volume) override;
+  void OnStateChanged(AudioInputIPCDelegate::State state) override;
+  void OnIPCClosed() override;
 
  private:
   // Note: The ordering of members in this enum is critical to correct behavior!
   enum State {
     IPC_CLOSED,  // No more IPCs can take place.
     IDLE,  // Not started.
     CREATING_STREAM,  // Waiting for OnStreamCreated() to be called back.
     RECORDING,  // Receiving audio data.
   };
 
   // Methods called on IO thread ----------------------------------------------
   // The following methods are tasks posted on the IO thread that needs to
   // be executed on that thread. They interact with AudioInputMessageFilter and
   // sends IPC messages on that thread.
   void StartUpOnIOThread();
   void ShutDownOnIOThread();
   void SetVolumeOnIOThread(double volume);
   void SetAutomaticGainControlOnIOThread(bool enabled);
 
   // base::MessageLoop::DestructionObserver implementation for the IO loop.
   // If the IO loop dies before we do, we shut down the audio thread from here.
-  virtual void WillDestroyCurrentMessageLoop() override;
+  void WillDestroyCurrentMessageLoop() override;
 
   AudioParameters audio_parameters_;
 
   CaptureCallback* callback_;
 
   // A pointer to the IPC layer that takes care of sending requests over to
   // the AudioInputRendererHost.  Only valid when state_ != IPC_CLOSED and must
   // only be accessed on the IO thread.
   scoped_ptr<AudioInputIPC> ipc_;
 
@@ skipping 25 matching lines @@
   // TODO(miu): Replace this by changing AudioCapturerSource to accept the
   // callback via Start(). See http://crbug.com/151051 for details.
   bool stopping_hack_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(AudioInputDevice);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_INPUT_DEVICE_H_