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

sdk/lib/io/http.dart

Index: sdk/lib/io/http.dart
diff --git a/sdk/lib/io/http.dart b/sdk/lib/io/http.dart
index f0c4282a228cd635f03d1ffa32a6f99872271c64..360e0e028aba11e5190fe9d17cd0a3a05f084086 100644
--- a/sdk/lib/io/http.dart
+++ b/sdk/lib/io/http.dart
@@ -179,6 +179,20 @@ abstract class HttpServer implements Stream<HttpRequest> {
   HttpHeaders get defaultResponseHeaders;
 
   /**
+   * Get and set if the [HttpServer] should auto-compress the content, when

[Lasse Reichstein Nielsen, 2014/09/23 07:24:52]

Other documentation doesn't use "get and set".
This is a property, so just describe it as a noun (or here, since it's bool, as
a choice), not as its getter/setter's behavior.

"Whether the [HttpServer] will automatically compress the content, if possible."

[Anders Johnsen, 2014/09/23 08:35:34]

Done.

+   * possible.
+   *
+   * The [HttpServer] will only compress when the response is using chunked
+   * Transfer-Encoding and the incoming request has `gzip` set in the
+   * Accept-Encoding header.
+   *
+   * To disable, set to `false`.

[Lasse Reichstein Nielsen, 2014/09/23 07:24:52]

Combine the two short paragrahps?
"The default value is `true` (auto-compress enabled). To disable, set
`autoCompress` to `false`."

[Anders Johnsen, 2014/09/23 08:35:34]

Done.

+   *
+   * The default value is `true`.

[Søren Gjesse, 2014/09/23 07:56:23]

I know the current default is true, but we should consider making the default
false, so nothing "automatic" happens unless explicitly turned on.

[Anders Johnsen, 2014/09/23 08:35:34]

Done.

+   */
+  bool autoCompress;

[Lasse Reichstein Nielsen, 2014/09/23 07:24:52]

If you can enable and disable it, should it still be called "auto", and not just
"compress"?

How about:
  /**
   * 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` in 
   * as an accepted encoding in the Accept-Encoding header.
   *
   * The default value is `true` (compression enabled). 
   * To disable, set `compress` to false.
   */
  bool compress; 

[Anders Johnsen, 2014/09/23 08:35:34]

Done.

+
+  /**
    * 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.