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 8 namespace content { 9 10 class Stream; 11 12 class 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: ~StreamWriteObserver()22 virtual ~StreamWriteObserver() {} 23 }; 24 25 } // namespace content 26 27 #endif // CONTENT_BROWSER_STREAMS_STREAM_WRITE_OBSERVER_H_ 28