Close all writers before JingleSession is destroyed.

remoting/protocol/buffered_socket_writer.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef REMOTING_PROTOCOL_BUFFERED_SOCKET_WRITER_H_
 #define REMOTING_PROTOCOL_BUFFERED_SOCKET_WRITER_H_
 
 #include <list>
 
 #include "base/memory/ref_counted.h"
@@ skipping 37 matching lines @@
   // the data if called before Init(). Can be called on any thread.
   bool Write(scoped_refptr<net::IOBufferWithSize> buffer, Task* done_task);
 
   // Returns current size of the buffer. Can be called on any thread.
   int GetBufferSize();
 
   // Returns number of chunks that are currently in the buffer waiting
   // to be written. Can be called on any thread.
   int GetBufferChunks();
 
-  // Stops writing and drops current buffers.
+  // Stops writing and drops current buffers. Must be called on the
+  // network thread.
   void Close();
 
  protected:
   class PendingPacket;
   typedef std::list<PendingPacket*> DataQueue;
 
   DataQueue queue_;
   int buffer_size_;
 
   // Removes element from the front of the queue and calls |done_task|
@@ skipping 52 matching lines @@
  protected:
   virtual void GetNextPacket_Locked(net::IOBuffer** buffer, int* size);
   virtual void AdvanceBufferPosition_Locked(int written);
   virtual void OnError_Locked(int result);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_BUFFERED_SOCKET_WRITER_H_