Stop heartbeat timer when signalling is disconnected.

remoting/host/heartbeat_sender.cc

 // 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.
 
 #include "remoting/host/heartbeat_sender.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop_proxy.h"
 #include "base/string_number_conversions.h"
@@ skipping 67 matching lines @@
   DoSendStanza();
   timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(interval_ms_), this,
                &HeartbeatSender::DoSendStanza);
 }
 
 void HeartbeatSender::OnSignallingDisconnected() {
   DCHECK(message_loop_->BelongsToCurrentThread());
   state_ = STOPPED;
   request_.reset();
   iq_sender_.reset();
+  timer_.Stop();
 }
 
 // Ignore any notifications other than signalling
 // connected/disconnected events.
 void HeartbeatSender::OnAccessDenied() { }
 void HeartbeatSender::OnClientAuthenticated(const std::string& jid) { }
 void HeartbeatSender::OnClientDisconnected(const std::string& jid) { }
 void HeartbeatSender::OnShutdown() { }
 
 void HeartbeatSender::DoSendStanza() {
@@ skipping 70 matching lines @@
       QName(kChromotingXmlNamespace, kSignatureTimeAttr), time_str);
 
   std::string message = full_jid_ + ' ' + time_str;
   std::string signature(key_pair_.GetSignature(message));
   signature_tag->AddText(signature);
 
   return signature_tag;
 }
 
 }  // namespace remoting