Change new List(n) to return fixed length list.

sdk/lib/io/websocket_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.
 
 part of dart.io;
 
 const String _webSocketGUID = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
 
 class _WebSocketMessageType {
   static const int NONE = 0;
@@ skipping 429 matching lines @@
     Uri uri = Uri.parse(url);
     if (uri.scheme != "ws" && uri.scheme != "wss") {
       throw new WebSocketException("Unsupported URL scheme '${uri.scheme}'");
     }
     if (uri.userInfo != "") {
       throw new WebSocketException("Unsupported user info '${uri.userInfo}'");
     }
 
     Random random = new Random();
     // Generate 16 random bytes.
-    List<int> nonceData = new List<int>.fixedLength(16);
+    List<int> nonceData = new List<int>(16);
     for (int i = 0; i < 16; i++) {
       nonceData[i] = random.nextInt(256);
     }
     String nonce = _Base64._encode(nonceData);
 
     uri = new Uri.fromComponents(scheme: uri.scheme == "wss" ? "https" : "http",
                                  userInfo: uri.userInfo,
                                  domain: uri.domain,
                                  port: uri.port,
                                  path: uri.path,
@@ skipping 172 matching lines @@
   void _sendFrame(int opcode, [List<int> data]) {
     bool mask = false;  // Masking not implemented for server.
     int dataLength = data == null ? 0 : data.length;
     // Determine the header size.
     int headerSize = (mask) ? 6 : 2;
     if (dataLength > 65535) {
       headerSize += 8;
     } else if (dataLength > 125) {
       headerSize += 2;
     }
-    List<int> header = new List<int>.fixedLength(headerSize);
+    List<int> header = new List<int>(headerSize);
     int index = 0;
     // Set FIN and opcode.
     header[index++] = 0x80 | opcode;
     // Determine size and position of length field.
     int lengthBytes = 1;
     int firstLengthByte = 1;
     if (dataLength > 65535) {
       header[index++] = 127;
       lengthBytes = 8;
     } else if (dataLength > 125) {
@@ skipping 22 matching lines @@
 
 class _WebSocketCloseEvent implements CloseEvent {
   _WebSocketCloseEvent(this._wasClean, this._code, this._reason);
   bool get wasClean => _wasClean;
   int get code => _code;
   String get reason => _reason;
   bool _wasClean;
   int _code;
   String _reason;
 }