Changed MessageReader so that it doesn't read from the socket if there are

remoting/protocol/host_message_dispatcher.h

Index: remoting/protocol/host_message_dispatcher.h
diff --git a/remoting/protocol/host_message_dispatcher.h b/remoting/protocol/host_message_dispatcher.h
index 8ebed01aec9f7da83fbf0be60106a624688a5a95..477ae19df862570c62709749ec598dbede98f424 100644
--- a/remoting/protocol/host_message_dispatcher.h
+++ b/remoting/protocol/host_message_dispatcher.h
@@ -45,11 +45,11 @@ class HostMessageDispatcher {
  private:
   // This method is called by |control_channel_reader_| when a control
   // message is received.
-  void OnControlMessageReceived(ControlMessage* message);
+  void OnControlMessageReceived(ControlMessage* message, Task* done_task);
 
   // This method is called by |event_channel_reader_| when a event
   // message is received.
-  void OnEventMessageReceived(EventMessage* message);
+  void OnEventMessageReceived(EventMessage* message, Task* done_task);
 
   // MessageReader that runs on the control channel. It runs a loop
   // that parses data on the channel and then delegates the message to this