1// Copyright (c) 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CONTENT_BROWSER_STREAMS_STREAM_WRITE_OBSERVER_H_
6#define CONTENT_BROWSER_STREAMS_STREAM_WRITE_OBSERVER_H_
7
8namespace content {
9
10class Stream;
11
12class StreamWriteObserver {
13 public:
14  // Sent when space becomes available in the stream, and the source should
15  // resume writing.
16  virtual void OnSpaceAvailable(Stream* stream) = 0;
17
18  // Sent when the stream is closed, and the writer should stop sending data.
19  virtual void OnClose(Stream* stream) = 0;
20
21 protected:
22  virtual ~StreamWriteObserver() {}
23};
24
25}  // namespace content
26
27#endif  // CONTENT_BROWSER_STREAMS_STREAM_WRITE_OBSERVER_H_
28