Remove .writeStream, .consume and rewrite IOSink to correctly implement a (sane) well-defined behav…

utils/pub/safe_http_server.dart

Index: utils/pub/safe_http_server.dart
diff --git a/utils/pub/safe_http_server.dart b/utils/pub/safe_http_server.dart
index 8843e488c1e3b2909effd630ba1cad0cb72be36c..083cb938afd38d1553f0176570dc60fad9c84fff 100644
--- a/utils/pub/safe_http_server.dart
+++ b/utils/pub/safe_http_server.dart
@@ -132,12 +132,8 @@ class _HttpResponseWrapper implements HttpResponse {
   Future<Socket> detachSocket() => _inner.detachSocket();
   HttpConnectionInfo get connectionInfo => _inner.connectionInfo;
   void add(List<int> data) => _inner.add(data);
-  Future<HttpResponse> consume(Stream<List<int>> stream) =>
-    _inner.consume(stream);
   Future<HttpResponse> addStream(Stream<List<int>> stream) =>
     _inner.addStream(stream);
-  Future<HttpResponse> writeStream(Stream<List<int>> stream) =>
-    _inner.writeStream(stream);
   Future close() => _inner.close();
   void write(Object obj) => _inner.write(obj);
   void writeAll(Iterable objects) => _inner.writeAll(objects);