Fix wrong type in HTTP library

runtime/bin/http_impl.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.
 
 class _HttpHeaders implements HttpHeaders {
   _HttpHeaders() : _headers = new Map<String, List<String>>();
 
   List<String> operator[](String name) {
     name = name.toLowerCase();
     return _headers[name];
@@ skipping 958 matching lines @@
         }
       };
       connection._connectionEstablished(socket);
       _connections.add(connection);
     }
     serverSocket.onConnection = onConnection;
     _server = serverSocket;
     _closeServer = false;
   }
 
-  addRequestHandler(bool matcher(String path),
+  addRequestHandler(bool matcher(HttpRequest request),
                     void handler(HttpRequest request, HttpResponse response)) {
     _handlers.add(new _RequestHandlerRegistration(matcher, handler));
   }
 
   void set defaultRequestHandler(
       void handler(HttpRequest request, HttpResponse response)) {
     _defaultHandler = handler;
   }
 
   void close() {
@@ skipping 553 matching lines @@
 }
 
 
 class _DetachedSocket implements DetachedSocket {
   _DetachedSocket(this._socket, this._unparsedData);
   Socket get socket() => _socket;
   List<int> get unparsedData() => _unparsedData;
   Socket _socket;
   List<int> _unparsedData;
 }