Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/webaudio/BiquadDSPKernel.h

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 #include "platform/audio/AudioDSPKernel.h"
 #include "platform/audio/Biquad.h"
 #include "modules/webaudio/BiquadProcessor.h"
 
 namespace WebCore {
 
 class BiquadProcessor;
 
 // BiquadDSPKernel is an AudioDSPKernel and is responsible for filtering one channel of a BiquadProcessor using a Biquad object.
 
-class BiquadDSPKernel : public AudioDSPKernel {
+class BiquadDSPKernel FINAL : public AudioDSPKernel {
 public:
     explicit BiquadDSPKernel(BiquadProcessor* processor)
     : AudioDSPKernel(processor)
     {
     }
 
     // AudioDSPKernel
-    virtual void process(const float* source, float* dest, size_t framesToProcess);
-    virtual void reset() { m_biquad.reset(); }
+    virtual void process(const float* source, float* dest, size_t framesToProcess) OVERRIDE;
+    virtual void reset() OVERRIDE { m_biquad.reset(); }
 
     // Get the magnitude and phase response of the filter at the given
     // set of frequencies (in Hz). The phase response is in radians.
     void getFrequencyResponse(int nFrequencies,
                               const float* frequencyHz,
                               float* magResponse,
                               float* phaseResponse);
 
     virtual double tailTime() const OVERRIDE;
     virtual double latencyTime() const OVERRIDE;
 
 protected:
     Biquad m_biquad;
     BiquadProcessor* biquadProcessor() { return static_cast<BiquadProcessor*>(processor()); }
 
     // To prevent audio glitches when parameters are changed,
     // dezippering is used to slowly change the parameters.
     // |useSmoothing| implies that we want to update using the
     // smoothed values. Otherwise the final target values are
     // used. If |forceUpdate| is true, we update the coefficients even
     // if they are not dirty. (Used when computing the frequency
     // response.)
     void updateCoefficientsIfNecessary(bool useSmoothing, bool forceUpdate);
 };
 
 } // namespace WebCore
 
 #endif // BiquadDSPKernel_h