Splitting out the Audio library.

sdk/lib/html/src/dartium_FactoryProviders.dart

 // 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 html;
 
-class _AudioContextFactoryProvider {
-  static AudioContext createAudioContext() => _createAudioContext();
-  static _createAudioContext([int numberOfChannels,
-                              int numberOfFrames,
-                              int sampleRate])
-      native "AudioContext_constructor_Callback";
-}
-
 class _IDBKeyRangeFactoryProvider {
 
   static IDBKeyRange createIDBKeyRange_only(/*IDBKey*/ value) =>
       IDBKeyRange.only_(value);
 
   static IDBKeyRange createIDBKeyRange_lowerBound(
       /*IDBKey*/ bound, [bool open = false]) =>
       IDBKeyRange.lowerBound_(bound, open);
 
   static IDBKeyRange createIDBKeyRange_upperBound(
@@ skipping 80 matching lines @@
 }
 
 class _WebSocketFactoryProvider {
   static WebSocket createWebSocket(String url) => _createWebSocket(url);
   static _createWebSocket(String url) native "WebSocket_constructor_Callback";
 }
 
 class _TextFactoryProvider {
   static Text createText(String data) => document.$dom_createTextNode(data);
 }