Reverting 14496

pkg/http/lib/src/streamed_request.dart

-// Copyright (c) 2012, 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.
-
-library streamed_request;
-
-import 'dart:io';
-import 'dart:uri';
-
-import 'base_request.dart';
-
-/// An HTTP request where the request body is sent asynchronously after the
-/// connection has been established and the headers have been sent.
-///
-/// When the request is sent via [BaseClient.send], only the headers and
-/// whatever data has already been written to [StreamedRequest.stream] will be
-/// sent immediately. More data will be sent as soon as it's written to
-/// [StreamedRequest.stream], and when the stream is closed the request will
-/// end.
-class StreamedRequest extends BaseRequest {
-  /// The stream to which to write data that will be sent as the request body.
-  /// This may be safely written to before the request is sent; the data will be
-  /// buffered.
-  ///
-  /// Closing this signals the end of the request.
-  final OutputStream stream;
-
-  /// The stream from which the [BaseClient] will read the data in [stream] once
-  /// the request has been finalized.
-  final ListInputStream _inputStream;
-
-  /// Creates a new streaming request.
-  StreamedRequest(String method, Uri url)
-    : super(method, url),
-      stream = new ListOutputStream(),
-      _inputStream = new ListInputStream() {
-    // TODO(nweiz): pipe errors from the output stream to the input stream once
-    // issue 3657 is fixed
-    stream.onData = () => _inputStream.write(stream.read());
-    stream.onClosed = _inputStream.markEndOfStream;
-  }
-
-  /// Freezes all mutable fields other than [stream] and returns an [InputStream]
-  /// that emits the data being written to [stream].
-  InputStream finalize() {
-    super.finalize();
-    return _inputStream;
-  }
-}