regenerate dom libraries (dartium)

sdk/lib/web_audio/dartium/web_audio_dartium.dart

Index: sdk/lib/web_audio/dartium/web_audio_dartium.dart
diff --git a/sdk/lib/web_audio/dartium/web_audio_dartium.dart b/sdk/lib/web_audio/dartium/web_audio_dartium.dart
index 61c5925b467c1508dceb4ad2e1b201fbd694f727..b1d5ba5a7e74bb5a7233f1030494fc10a2a783ea 100644
--- a/sdk/lib/web_audio/dartium/web_audio_dartium.dart
+++ b/sdk/lib/web_audio/dartium/web_audio_dartium.dart
@@ -6,7 +6,7 @@ import 'dart:_collection-dev';
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:nativewrappers';
-import 'dart:typeddata' as _typeddata;
+import 'dart:typeddata';
 // DO NOT EDIT
 // Auto-generated dart:audio library.
 
@@ -272,7 +272,7 @@ class AudioContext extends EventTarget {
     if ((buffer_OR_numberOfChannels is int || buffer_OR_numberOfChannels == null) && (mixToMono_OR_numberOfFrames is int || mixToMono_OR_numberOfFrames == null) && (sampleRate is num || sampleRate == null)) {
       return _createBuffer_1(buffer_OR_numberOfChannels, mixToMono_OR_numberOfFrames, sampleRate);
     }
-    if ((buffer_OR_numberOfChannels is ArrayBuffer || buffer_OR_numberOfChannels is _typeddata.ByteBuffer || buffer_OR_numberOfChannels == null) && (mixToMono_OR_numberOfFrames is bool || mixToMono_OR_numberOfFrames == null) && !?sampleRate) {
+    if ((buffer_OR_numberOfChannels is ByteBuffer || buffer_OR_numberOfChannels == null) && (mixToMono_OR_numberOfFrames is bool || mixToMono_OR_numberOfFrames == null) && !?sampleRate) {
       return _createBuffer_2(buffer_OR_numberOfChannels, mixToMono_OR_numberOfFrames);
     }
     throw new ArgumentError("Incorrect number or type of arguments");