Show web_audio type map

sdk/lib/_blink/dartium/_blink_dartium.dart

 /**
  * This library provides entry points to the native Blink code which backs
  * up the dart:html library.
  */
 library dart.dom._blink;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:html';
 import 'dart:_internal' hide Symbol, deprecated;
 import 'dart:html_common';
 import 'dart:indexed_db';
 import 'dart:isolate';
 import "dart:convert";
 import 'dart:math';
 import 'dart:mirrors';
 import 'dart:nativewrappers';
 import 'dart:typed_data';
 import 'dart:web_gl' as gl;
 import 'dart:web_gl' show web_glBlinkMap;
 import 'dart:web_sql';
 import 'dart:svg' as svg;
 import 'dart:svg' show Matrix;
 import 'dart:svg' show SvgSvgElement;
 import 'dart:svg' show svgBlinkMap;
-import 'dart:web_audio' show AudioNode, AudioParam;
+import 'dart:web_audio' show AudioNode, AudioParam, web_audioBlinkMap;
 // Copyright (c) 2014, 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.
 
 // DO NOT EDIT
 // Auto-generated dart:_blink library.
 
 // TODO(leafp) These are mostly copied over from dart:html.  When
 // we shift dart:blink generation over to dartium, this dependency 
 // should go away, or at least be reconsidered.
@@ skipping 8559 matching lines @@
 // _DOMStringMap native entry  points
 Native_DOMStringMap_containsKey(_DOMStringMap, key) native "DOMStringMap_containsKey_Callback";
 
 Native_DOMStringMap_item(_DOMStringMap, key) native "DOMStringMap_item_Callback";
 
 Native_DOMStringMap_setItem(_DOMStringMap, key, value) native "DOMStringMap_setItem_Callback";
 
 Native_DOMStringMap_remove(_DOMStringMap, key) native "DOMStringMap_remove_Callback";
 
 Native_DOMStringMap_get_keys(_DOMStringMap) native "DOMStringMap_getKeys_Callback";