Code cleanup (mostly io lib and some http lib).

pkg/http/lib/src/mock_client.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 mock_client;
 
 import 'dart:async';
 
 import 'base_client.dart';
 import 'base_request.dart';
@@ skipping 15 matching lines @@
   /// [StreamedResponse]s.
   final MockClientStreamHandler _handler;
 
   MockClient._(this._handler);
 
   /// Creates a [MockClient] with a handler that receives [Request]s and sends
   /// [Response]s.
   MockClient(MockClientHandler fn)
     : this._((baseRequest, bodyStream) {
       return bodyStream.toBytes().then((bodyBytes) {
-        var request = new Request(baseRequest.method, baseRequest.url);
-        request.persistentConnection = baseRequest.persistentConnection;
-        request.followRedirects = baseRequest.followRedirects;
-        request.maxRedirects = baseRequest.maxRedirects;
-        request.headers.addAll(baseRequest.headers);
-        request.bodyBytes = bodyBytes;
-        request.finalize();
+        var request = new Request(baseRequest.method, baseRequest.url)
+            ..persistentConnection = baseRequest.persistentConnection
+            ..followRedirects = baseRequest.followRedirects
+            ..maxRedirects = baseRequest.maxRedirects
+            ..headers.addAll(baseRequest.headers)
+            ..bodyBytes = bodyBytes
+            ..finalize();
 
         return fn(request);
       }).then((response) {
         return new StreamedResponse(
             new ByteStream.fromBytes(response.bodyBytes),
             response.statusCode,
             response.contentLength,
             request: baseRequest,
             headers: response.headers,
             isRedirect: response.isRedirect,
@@ skipping 27 matching lines @@
 }
 
 /// A handler function that receives [StreamedRequest]s and sends
 /// [StreamedResponse]s. Note that [request] will be finalized.
 typedef Future<StreamedResponse> MockClientStreamHandler(
     BaseRequest request, ByteStream bodyStream);
 
 /// A handler function that receives [Request]s and sends [Response]s. Note that
 /// [request] will be finalized.
 typedef Future<Response> MockClientHandler(Request request);