Make ScriptProcessorNode not a proper event (because it isn't). This fixes the last of the static a…

sdk/lib/web_audio/dart2js/web_audio_dart2js.dart

Index: sdk/lib/web_audio/dart2js/web_audio_dart2js.dart
diff --git a/sdk/lib/web_audio/dart2js/web_audio_dart2js.dart b/sdk/lib/web_audio/dart2js/web_audio_dart2js.dart
index dbaef0078d81ae42b9b5cc79086d2b7df46e7e33..8035af7d2bb2e0113f98b66f2c0807400bf39145 100644
--- a/sdk/lib/web_audio/dart2js/web_audio_dart2js.dart
+++ b/sdk/lib/web_audio/dart2js/web_audio_dart2js.dart
@@ -643,22 +643,18 @@ class PannerNode extends AudioNode native "*PannerNode" {
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// WARNING: Do not edit - generated code.
 
-/// @domName ScriptProcessorNode; @docsEditable true
-class ScriptProcessorNode extends AudioNode implements EventTarget native "*ScriptProcessorNode" {
 
-  /// @domName EventTarget.addEventListener, EventTarget.removeEventListener, EventTarget.dispatchEvent; @docsEditable true
-  ScriptProcessorNodeEvents get on =>
-    new ScriptProcessorNodeEvents(this);
+/// @domName ScriptProcessorNode
+class ScriptProcessorNode extends AudioNode native "*ScriptProcessorNode" {
 
   /// @domName ScriptProcessorNode.bufferSize; @docsEditable true
   final int bufferSize;
-}
 
-class ScriptProcessorNodeEvents extends Events {
-  ScriptProcessorNodeEvents(EventTarget _ptr) : super(_ptr);
+  /// @domName ScriptProcessorNode.onaudioprocess; @docsEditable true
+  EventListener onaudioprocess;
 
-  EventListenerList get audioProcess => this['audioprocess'];
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a