Remove unused AudioParams in PannerNode.

Source/modules/webaudio/PannerNode.cpp

 /*
  * 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 58 matching lines @@
 
     ScriptWrappable::init(this);
     addInput(adoptPtr(new AudioNodeInput(this)));
     addOutput(adoptPtr(new AudioNodeOutput(this, 2)));
 
     // Node-specific default mixing rules.
     m_channelCount = 2;
     m_channelCountMode = ClampedMax;
     m_channelInterpretation = AudioBus::Speakers;
 
-    m_distanceGain = AudioParam::create(context, "distanceGain", 1.0, 0.0, 1.0);
-    m_coneGain = AudioParam::create(context, "coneGain", 1.0, 0.0, 1.0);
-
     m_cachedListener = AudioListener::create();
 
     setNodeType(NodeTypePanner);
 
     initialize();
 }
 
 PannerNode::~PannerNode()
 {
     uninitialize();
@@ skipping 330 matching lines @@
 
     return dopplerShift;
 }
 
 float PannerNode::calculateDistanceConeGain()
 {
     FloatPoint3D listenerPosition = listener()->position();
 
     double listenerDistance = m_position.distanceTo(listenerPosition);
     double distanceGain = m_distanceEffect.gain(listenerDistance);
-
-    m_distanceGain->setValue(static_cast<float>(distanceGain));
-
     double coneGain = m_coneEffect.gain(m_position, m_orientation, listenerPosition);
 
-    m_coneGain->setValue(static_cast<float>(coneGain));
-
     return float(distanceGain * coneGain);
 }
 
 void PannerNode::azimuthElevation(double* outAzimuth, double* outElevation)
 {
     ASSERT(context()->isAudioThread());
 
     if (isAzimuthElevationDirty())
         calculateAzimuthElevation(&m_cachedAzimuth, &m_cachedElevation);
 
@@ skipping 111 matching lines @@
     ASSERT(context()->isAudioThread());
 
     m_cachedPosition = m_position;
     m_cachedOrientation = m_orientation;
     m_cachedVelocity = m_velocity;
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)