Expand usage of defaultEncoding in HttpBody in the http_server package.

pkg/http_server/test/http_multipart_test.dart

 // Copyright (c) 2013, 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.
 
 import "package:http_server/http_server.dart";
 import "package:mime/mime.dart";
 import "package:unittest/unittest.dart";
 import 'dart:async';
 import 'dart:io';
+import 'dart:convert';
 
 class FormField {
   final String name;
   final value;
   final String contentType;
   final String filename;
 
   FormField(String this.name,
             this.value,
             {String this.contentType,
@@ skipping 18 matching lines @@
 
 void postDataTest(List<int> message,
                   String contentType,
                   String boundary,
                   List<FormField> expectedFields) {
   HttpServer.bind("127.0.0.1", 0).then((server) {
     server.listen((request) {
       String boundary = request.headers.contentType.parameters['boundary'];
       request
           .transform(new MimeMultipartTransformer(boundary))
-          .map(HttpMultipartFormData.parse)
+          .map((part) => HttpMultipartFormData.parse(
+              part, defaultEncoding: LATIN1))
           .map((multipart) {
             var future;
             if (multipart.isText) {
               future = multipart
                   .fold(new StringBuffer(), (b, s) => b..write(s))
                   .then((b) => b.toString());
             } else {
               future = multipart
                   .fold([], (b, s) => b..addAll(s));
             }
@@ skipping 129 matching lines @@
   postDataTest(message,
                'multipart/form-data',
                '----WebKitFormBoundaryfe0EzV1aNysD1bPh',
                [new FormField('name', 'øv')]);
 }
 
 
 void main() {
   testPostData();
 }