Splitting out the Audio library.

sdk/lib/_internal/compiler/implementation/native_handler.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.
 
 library native;
 
 import 'dart:uri';
 import 'dart2jslib.dart' hide SourceString;
 import 'elements/elements.dart';
 import 'js_backend/js_backend.dart';
@@ skipping 339 matching lines @@
 }
 
 void maybeEnableNative(Compiler compiler,
                        LibraryElement library,
                        Uri uri) {
   String libraryName = uri.toString();
   if (library.entryCompilationUnit.script.name.contains(
           'dart/tests/compiler/dart2js_native')
       || libraryName == 'dart:isolate'
       || libraryName == 'dart:html'
-      || libraryName == 'dart:svg') {
+      || libraryName == 'dart:svg'
+      || libraryName == 'dart:web_audio') {
     library.canUseNative = true;
   }
 }
 
 /**
  * A summary of the behavior of a native element.
  *
  * Native code can return values of one type and cause native subtypes of
  * another type to be instantiated.  By default, we compute both from the
  * declared type.
@@ skipping 474 matching lines @@
                                       String parameters) {
   buffer.add("  if (Object.getPrototypeOf(this).hasOwnProperty");
   buffer.add("('$methodName')) {\n");
   buffer.add("  $code");
   buffer.add("  } else {\n");
   buffer.add("    return Object.prototype.$methodName.call(this");
   buffer.add(parameters == '' ? '' : ', $parameters');
   buffer.add(");\n");
   buffer.add("  }\n");
 }