Fix a couple of doc comment references - and many spelling mistakes

sdk/lib/io/websocket.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;
 
 /**
  * WebSocket status codes used when closing a WebSocket connection.
  */
 abstract class WebSocketStatus {
@@ skipping 205 matching lines @@
   factory WebSocketTransformer(
       {/*String|Future<String>*/ protocolSelector(List<String> protocols),
       CompressionOptions compression: CompressionOptions.DEFAULT}) {
     return new _WebSocketTransformerImpl(protocolSelector, compression);
   }
 
   /**
    * Upgrades a [HttpRequest] to a [WebSocket] connection. If the
    * request is not a valid WebSocket upgrade request an HTTP response
    * with status code 500 will be returned. Otherwise the returned
-   * future will complete with the [WebSocket] when the upgrade pocess
+   * future will complete with the [WebSocket] when the upgrade process
    * is complete.
    *
    * If [protocolSelector] is provided, [protocolSelector] will be called to
    * select what protocol to use, if any were provided by the client.
    * [protocolSelector] is should return either a [String] or a [Future]
    * completing with a [String]. The [String] must exist in the list of
    * protocols.
    *
    * If [compression] is provided, the [WebSocket] created will be configured
    * to negotiate with the specified [CompressionOptions]. If none is specified
@@ skipping 178 matching lines @@
   void addUtf8Text(List<int> bytes);
 }
 
 class WebSocketException implements IOException {
   final String message;
 
   const WebSocketException([this.message = ""]);
 
   String toString() => "WebSocketException: $message";
 }