Close all writers before JingleSession is destroyed.

remoting/protocol/connection_to_client.h

Index: remoting/protocol/connection_to_client.h
diff --git a/remoting/protocol/connection_to_client.h b/remoting/protocol/connection_to_client.h
index c3f424c45b37ed242a50c5e328123173f227df29..d017db7fa87013fdf17dbef0d4f1d89545a6f5bc 100644
--- a/remoting/protocol/connection_to_client.h
+++ b/remoting/protocol/connection_to_client.h
@@ -18,6 +18,7 @@
 namespace remoting {
 namespace protocol {
 
+class ClientControlSender;
 class ClientStub;
 class HostStub;
 class InputStub;
@@ -89,9 +90,6 @@ class ConnectionToClient :
   // Callback for protocol Session.
   void OnSessionStateChange(Session::State state);
 
-  // Process a libjingle state change event on the |loop_|.
-  void StateChangeTask(Session::State state);
-
   void OnClosed();
 
   // The libjingle channel used to send and receive data from the remote client.
@@ -100,7 +98,7 @@ class ConnectionToClient :
   scoped_ptr<VideoWriter> video_writer_;
 
   // ClientStub for sending messages to the client.
-  scoped_ptr<ClientStub> client_stub_;
+  scoped_ptr<ClientControlSender> client_control_sender_;
 
   // The message loop that this object runs on.
   MessageLoop* loop_;