Merge IO v2 branch to bleeding edge

sdk/lib/io/list_stream.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.
-
-part of dart.io;
-
-/**
- * [ListInputStream] makes it possible to use the [InputStream]
- * interface to stream over data that is received in chunks as lists
- * of integers.
- *
- * When a new list of integers is received it can be written to the
- * [ListInputStream] using the [write] method. The [markEndOfStream]
- * method must be called when the last data has been written to the
- * [ListInputStream].
- */
-abstract class ListInputStream implements InputStream {
-  /**
-   * Create an empty [ListInputStream] to which data can be written
-   * using the [write] method.
-   */
-  factory ListInputStream() =>  new _ListInputStream();
-
-  /**
-   * Write more data to be streamed over to the [ListInputStream].
-   */
-  void write(List<int> data);
-
-  /**
-   * Notify the [ListInputStream] that no more data will be written to
-   * it.
-   */
-  void markEndOfStream();
-}
-
-
-/**
- * [ListOutputStream] makes it possible to use the [OutputStream]
- * interface to write data to a [List] of integers.
- */
-abstract class ListOutputStream implements OutputStream {
-  /**
-   * Create a [ListOutputStream].
-   */
-  factory ListOutputStream() => new _ListOutputStream();
-
-  /**
-   * Reads all available data from the stream. If no data is available `null`
-   * will be returned.
-   */
-  List<int> read();
-
-  /**
-   * Sets the handler that gets called when data is available.
-   */
-  void set onData(void callback());
-}