Update WebKit IDLs after chrome roll.

Modules/webaudio/BiquadFilterNode.idl

 /*
  * Copyright (C) 2011, 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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 [
-    Conditional=WEB_AUDIO,
-    JSGenerateToJSObject
+    Conditional=WEB_AUDIO
 ] interface BiquadFilterNode : AudioNode {
     // Filter type.
     const unsigned short LOWPASS = 0;
     const unsigned short HIGHPASS = 1;
     const unsigned short BANDPASS = 2;
     const unsigned short LOWSHELF = 3;
     const unsigned short HIGHSHELF = 4;
     const unsigned short PEAKING = 5;
     const unsigned short NOTCH = 6;
     const unsigned short ALLPASS = 7;
 
     [CustomSetter] attribute DOMString type;
     
     readonly attribute AudioParam frequency; // in Hertz
     readonly attribute AudioParam detune; // in Cents
     readonly attribute AudioParam Q; // Quality factor
     readonly attribute AudioParam gain; // in Decibels
 
     void getFrequencyResponse(in Float32Array frequencyHz,
                               in Float32Array magResponse,
                               in Float32Array phaseResponse);
 };