Merge the dart:uri library into dart:core and update the Uri class

sdk/lib/io/websocket_impl.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.
 
 part of dart.io;
 
 const String _webSocketGUID = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
 
 class _WebSocketMessageType {
   static const int NONE = 0;
@@ skipping 642 matching lines @@
     }
 
     Random random = new Random();
     // Generate 16 random bytes.
     List<int> nonceData = new List<int>(16);
     for (int i = 0; i < 16; i++) {
       nonceData[i] = random.nextInt(256);
     }
     String nonce = CryptoUtils.bytesToBase64(nonceData);
 
-    uri = new Uri.fromComponents(scheme: uri.scheme == "wss" ? "https" : "http",
-                                 userInfo: uri.userInfo,
-                                 domain: uri.domain,
-                                 port: uri.port,
-                                 path: uri.path,
-                                 query: uri.query,
-                                 fragment: uri.fragment);
+    uri = new Uri(scheme: uri.scheme == "wss" ? "https" : "http",
+                  userInfo: uri.userInfo,
+                  host: uri.host,
+                  port: uri.port,
+                  path: uri.path,
+                  query: uri.query,
+                  fragment: uri.fragment);
     return _httpClient.openUrl("GET", uri)
       .then((request) {
         // Setup the initial handshake.
         request.headers.add(HttpHeaders.CONNECTION, "upgrade");
         request.headers.set(HttpHeaders.UPGRADE, "websocket");
         request.headers.set("Sec-WebSocket-Key", nonce);
         request.headers.set("Sec-WebSocket-Version", "13");
         return request.close();
       })
       .then((response) {
@@ skipping 115 matching lines @@
            (code < WebSocketStatus.NORMAL_CLOSURE ||
             code == WebSocketStatus.RESERVED_1004 ||
             code == WebSocketStatus.NO_STATUS_RECEIVED ||
             code == WebSocketStatus.ABNORMAL_CLOSURE ||
             (code > WebSocketStatus.INTERNAL_SERVER_ERROR &&
              code < WebSocketStatus.RESERVED_1015) ||
             (code >= WebSocketStatus.RESERVED_1015 &&
              code < 3000));
   }
 }