Stop working around issue 16029 in pkg/http.

pkg/http/lib/src/base_request.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 base_request;
 
 import 'dart:async';
 
 import 'byte_stream.dart';
 import 'client.dart';
@@ skipping 14 matching lines @@
 
   /// The URL to which the request will be sent.
   final Uri url;
 
   /// The size of the request body, in bytes. This defaults to -1, which
   /// indicates that the size of the request is not known in advance.
   int get contentLength => _contentLength;
   int _contentLength = -1;
 
   set contentLength(int value) {
-    _baseCheckFinalized();
+    _checkFinalized();
     _contentLength = value;
   }
 
   /// Whether a persistent connection should be maintained with the server.
   /// Defaults to true.
   bool get persistentConnection => _persistentConnection;
   bool _persistentConnection = true;
 
   set persistentConnection(bool value) {
-    _baseCheckFinalized();
+    _checkFinalized();
     _persistentConnection = value;
   }
 
   /// Whether the client should follow redirects while resolving this request.
   /// Defaults to true.
   bool get followRedirects => _followRedirects;
   bool _followRedirects = true;
 
   set followRedirects(bool value) {
-    _baseCheckFinalized();
+    _checkFinalized();
     _followRedirects = value;
   }
 
   /// The maximum number of redirects to follow when [followRedirects] is true.
   /// If this number is exceeded the [BaseResponse] future will signal a
   /// [RedirectException]. Defaults to 5.
   int get maxRedirects => _maxRedirects;
   int _maxRedirects = 5;
 
   set maxRedirects(int value) {
-    _baseCheckFinalized();
+    _checkFinalized();
     _maxRedirects = value;
   }
 
   // TODO(nweiz): automatically parse cookies from headers
 
   // TODO(nweiz): make this a HttpHeaders object
   /// The headers for this request.
   final Map<String, String> headers;
 
   /// Whether the request has been finalized.
@@ skipping 39 matching lines @@
           isRedirect: response.isRedirect,
           persistentConnection: response.persistentConnection,
           reasonPhrase: response.reasonPhrase);
     }).catchError((e) {
       client.close();
       throw e;
     });
   }
 
   // Throws an error if this request has been finalized.
-  // TODO(nweiz): rename to _checkFinalized once 16029 is resolved
-  void _baseCheckFinalized() {
+  void _checkFinalized() {
     if (!finalized) return;
     throw new StateError("Can't modify a finalized Request.");
   }
 
   String toString() => "$method $url";
 }