Update pkg/http to use the new async APIs.

pkg/http/test/utils.dart

Index: pkg/http/test/utils.dart
diff --git a/pkg/http/test/utils.dart b/pkg/http/test/utils.dart
index 9e9ae8b3408d37c5ab724bd4f8486fe0f41f3f18..a4238cfacb676e8eca6f3190f79979c9b363cb6d 100644
--- a/pkg/http/test/utils.dart
+++ b/pkg/http/test/utils.dart
@@ -4,6 +4,7 @@
 
 library test_utils;
 
+import 'dart:async';
 import 'dart:io';
 import 'dart:json' as json;
 import 'dart:uri';
@@ -104,6 +105,10 @@ void stopServer() {
   _server = null;
 }
 
+/// Buffers all input from an InputStream and returns it as a future.

[Bob Nystrom, 2013/01/08 23:50:49]

Is this a dart:io compatibility thing? If so, document it as such and add a TODO
to get rid of it when we can.

[nweiz, 2013/01/09 00:52:11]

Done.

+Future<List<int>> consumeInputStream(InputStream stream) =>
+  new http.ByteStream(wrapInputStream(stream)).toBytes();
+
 /// A matcher that matches JSON that parses to a value that matches the inner
 /// matcher.
 Matcher parse(matcher) => new _Parse(matcher);