Remove done notifications from incoming message handlers.

remoting/protocol/host_event_dispatcher.cc

Index: remoting/protocol/host_event_dispatcher.cc
diff --git a/remoting/protocol/host_event_dispatcher.cc b/remoting/protocol/host_event_dispatcher.cc
index f3fa8d9d7b041d80c3b7710638ae0356429d4b20..36fccc76db525dd71238b0713bce655ae0804fe4 100644
--- a/remoting/protocol/host_event_dispatcher.cc
+++ b/remoting/protocol/host_event_dispatcher.cc
@@ -4,7 +4,6 @@
 
 #include "remoting/protocol/host_event_dispatcher.h"
 
-#include "base/callback_helpers.h"
 #include "net/socket/stream_socket.h"
 #include "remoting/base/constants.h"
 #include "remoting/proto/event.pb.h"
@@ -23,12 +22,9 @@ HostEventDispatcher::HostEventDispatcher()
 
 HostEventDispatcher::~HostEventDispatcher() {}
 
-void HostEventDispatcher::OnMessageReceived(scoped_ptr<EventMessage> message,
-                                            const base::Closure& done_task) {
+void HostEventDispatcher::OnMessageReceived(scoped_ptr<EventMessage> message) {
   DCHECK(input_stub_);
 
-  base::ScopedClosureRunner done_runner(done_task);
-
   if (!on_input_event_callback_.is_null())
     on_input_event_callback_.Run(message->timestamp());