Add HttpServer:autoCompress option, to disable auto gzip compression.

sdk/lib/io/http.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;
 
 /**
  * HTTP status codes.
  */
 abstract class HttpStatus {
@@ skipping 160 matching lines @@
    *     Content-Type: text/plain; charset=utf-8
    *     X-Frame-Options: SAMEORIGIN
    *     X-Content-Type-Options: nosniff
    *     X-XSS-Protection: 1; mode=block
    *
    * If the `Server` header is added here and the `serverHeader` is set as
    * well then the value of `serverHeader` takes precedence.
    */
   HttpHeaders get defaultResponseHeaders;
 
+   /**
+   * Whether the [HttpServer] should compress the content, if possible.
+   *
+   * The content can only be compressed when the response is using
+   * chunked Transfer-Encoding and the incoming request has `gzip`
+   * as an accepted encoding in the Accept-Encoding header.
+   *
+   * The default value is `false` (compression disabled).

[Lasse Reichstein Nielsen, 2014/09/23 10:39:59]

You change the default to false. Is this different from the previous behavior if
you don't do anything? If so, it should be a major-version update, not minor.

[Anders Johnsen, 2014/09/23 11:08:04]

This is transparent to the sdk change, so a minor should be fine. (the SDK
restriction should be updated though.)

+   * To enable, set `autoCompress` to `true`.
+   */
+  bool autoCompress;
+
   /**
    * Get or set the timeout used for idle keep-alive connections. If no further
    * request is seen within [idleTimeout] after the previous request was
    * completed, the connection is dropped.
    *
    * Default is 120 seconds.
    *
    * Note that it may take up to `2 * idleTimeout` before a idle connection is
    * aborted.
    *
@@ skipping 1786 matching lines @@
 class RedirectException implements HttpException {
   final String message;
   final List<RedirectInfo> redirects;
 
   const RedirectException(this.message, this.redirects);
 
   String toString() => "RedirectException: $message";
 
   Uri get uri => redirects.last.location;
 }