IDL roll and expectations fix

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 30413ba07228e732b9c5dab68779bc9c62a7b780..5539896e671cecd5449ae7550a7ace9dba45b31e 100644
--- a/sdk/lib/web_audio/dart2js/web_audio_dart2js.dart
+++ b/sdk/lib/web_audio/dart2js/web_audio_dart2js.dart
@@ -6,7 +6,7 @@ import 'dart:_collection-dev';
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:typed_data';
-import 'dart:_js_helper' show Creates, Returns, convertDartClosureToJS;
+import 'dart:_js_helper' show Creates, JSName, Returns, convertDartClosureToJS;
 import 'dart:_foreign_helper' show JS;
 import 'dart:_interceptors' show Interceptor;
 // DO NOT EDIT - unless you are editing documentation as per:
@@ -415,7 +415,7 @@ class AudioListener native "AudioListener" {
 @DomName('AudioNode')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AudioNode-section
 @Experimental
-class AudioNode native "AudioNode" {
+class AudioNode extends EventTarget native "AudioNode" {
 
   @DomName('AudioNode.channelCount')
   @DocsEditable
@@ -441,6 +441,12 @@ class AudioNode native "AudioNode" {
   @DocsEditable
   final int numberOfOutputs;
 
+  @JSName('addEventListener')
+  @DomName('AudioNode.addEventListener')
+  @DocsEditable
+  @Experimental // untriaged
+  void $dom_addEventListener(String type, EventListener listener, [bool useCapture]) native;
+
   @DomName('AudioNode.connect')
   @DocsEditable
   void connect(destination, int output, [int input]) native;
@@ -448,6 +454,17 @@ class AudioNode native "AudioNode" {
   @DomName('AudioNode.disconnect')
   @DocsEditable
   void disconnect(int output) native;
+
+  @DomName('AudioNode.dispatchEvent')
+  @DocsEditable
+  @Experimental // untriaged
+  bool dispatchEvent(Event event) native;
+
+  @JSName('removeEventListener')
+  @DomName('AudioNode.removeEventListener')
+  @DocsEditable
+  @Experimental // untriaged
+  void $dom_removeEventListener(String type, EventListener listener, [bool useCapture]) native;
 }
 // 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