Remove type of panningModelType "soundfield".

Source/platform/audio/Panner.h

 /*
  * Copyright (C) 2009 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
@@ skipping 25 matching lines @@
 
 class AudioBus;
 class HRTFDatabaseLoader;
 
 // Abstract base class for panning a mono or stereo source.
 
 class PLATFORM_EXPORT Panner {
 public:
     enum {
         PanningModelEqualPower = 0,
-        PanningModelHRTF = 1,
-        PanningModelSoundField = 2
+        PanningModelHRTF = 1
     };
 
     typedef unsigned PanningModel;
 
     static PassOwnPtr<Panner> create(PanningModel, float sampleRate, HRTFDatabaseLoader*);
 
     virtual ~Panner() { };
 
     PanningModel panningModel() const { return m_panningModel; }
 
     virtual void pan(double azimuth, double elevation, const AudioBus* inputBus, AudioBus* outputBus, size_t framesToProcess) = 0;
 
     virtual void reset() = 0;
 
     virtual double tailTime() const = 0;
     virtual double latencyTime() const = 0;
 
 protected:
     Panner(PanningModel model) : m_panningModel(model) { }
 
     PanningModel m_panningModel;
 };
 
 } // namespace WebCore
 
 #endif // Panner_h