Removed DARTIUM codegen for IDLS (sdk/lib/dartium)

tools/dom/templates/html/impl/impl_AudioContext.darttemplate

 // 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
 // BSD-style license that can be found in the LICENSE file.
 
 part of web_audio;
 
 $(ANNOTATIONS)$(NATIVESPEC)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS {
 $!MEMBERS
-$if DART2JS
   factory AudioContext() => JS('AudioContext',
       'new (window.AudioContext || window.webkitAudioContext)()');
 
   GainNode createGain() {
     if (JS('bool', '#.createGain !== undefined', this)) {
       return JS('GainNode', '#.createGain()', this);
     } else {
       return JS('GainNode', '#.createGainNode()', this);
     }
   }
 
   ScriptProcessorNode createScriptProcessor(int bufferSize,
       [int numberOfInputChannels, int numberOfOutputChannels]) {
     var function = JS('=Object', '#.createScriptProcessor || '
         '#.createJavaScriptNode', this, this);
     if (numberOfOutputChannels != null) {
       return JS('ScriptProcessorNode', '#.call(#, #, #, #)', function, this,
           bufferSize, numberOfInputChannels, numberOfOutputChannels);
     } else if (numberOfInputChannels != null) {
       return JS('ScriptProcessorNode', '#.call(#, #, #)', function, this,
           bufferSize, numberOfInputChannels);
     } else {
       return JS('ScriptProcessorNode', '#.call(#, #)', function, this,
           bufferSize);
     }
   }
-$endif
 
-$if DART2JS
   @JSName('decodeAudioData')
   @DomName('AudioContext.decodeAudioData')
   @DocsEditable()
   Future _decodeAudioData(ByteBuffer audioData,
       [AudioBufferCallback successCallback,
       AudioBufferCallback errorCallback]) native;
 
   @DomName('AudioContext.decodeAudioData')
   Future<AudioBuffer> decodeAudioData(ByteBuffer audioData) {
     var completer = new Completer<AudioBuffer>();
     _decodeAudioData(audioData,
         (value) { completer.complete(value); },
         (error) {
           if (error == null) {
             completer.completeError('');
           } else {
             completer.completeError(error);
           }
         });
     return completer.future;
   }
-$else
-  @DomName('AudioContext.decodeAudioData')
-  Future<AudioBuffer> decodeAudioData(ByteBuffer audioData,
-      [AudioBufferCallback successCallback,
-      AudioBufferCallback errorCallback]) {
-    if (errorCallback != null) {
-      return convertNativePromiseToDartFuture(_blink.BlinkAudioContext.instance.decodeAudioData_Callback_3_(
-          this, audioData, successCallback, errorCallback));
-    }
-    if (successCallback != null) {
-      return convertNativePromiseToDartFuture(_blink.BlinkAudioContext.instance
-          .decodeAudioData_Callback_2_(this, audioData, successCallback));
-    }
-    return convertNativePromiseToDartFuture(_blink.BlinkAudioContext.instance
-        .decodeAudioData_Callback_1_(this, audioData));
-  }
-$endif
 }