Adding XMPP ping functionality to CLoudPrint. XMPP ping and timeout is controlled thorugh Service S…

jingle/notifier/listener/push_notifications_send_update_task.cc

Index: jingle/notifier/listener/push_notifications_send_update_task.cc
diff --git a/jingle/notifier/listener/push_notifications_send_update_task.cc b/jingle/notifier/listener/push_notifications_send_update_task.cc
index 50ec15e3cf45ab58336d26730ba77e533cc07b25..166db2330160ab29c5678ef0f8742833115d0605 100644
--- a/jingle/notifier/listener/push_notifications_send_update_task.cc
+++ b/jingle/notifier/listener/push_notifications_send_update_task.cc
@@ -26,9 +26,14 @@ PushNotificationsSendUpdateTask::PushNotificationsSendUpdateTask(
 PushNotificationsSendUpdateTask::~PushNotificationsSendUpdateTask() {}
 
 int PushNotificationsSendUpdateTask::ProcessStart() {
-  scoped_ptr<buzz::XmlElement> stanza(
-      MakeUpdateMessage(notification_,
-                        GetClient()->jid().BareJid()));
+  scoped_ptr<buzz::XmlElement> stanza;
+  if (notification_.ping) {
+    stanza.reset(MakePingStanza(notification_, task_id()));
+  } else {
+    stanza.reset(MakeUpdateMessage(notification_,
+                                   GetClient()->jid().BareJid()));
+  }
+
   DVLOG(1) << "Sending notification " << notification_.ToString()
            << " as stanza " << XmlElementToString(*stanza);
   if (SendStanza(stanza.get()) != buzz::XMPP_RETURN_OK) {
@@ -91,4 +96,14 @@ buzz::XmlElement* PushNotificationsSendUpdateTask::MakeUpdateMessage(
   return message;
 }
 
+buzz::XmlElement* PushNotificationsSendUpdateTask::MakePingStanza(
+    const Notification& notification, const std::string& task_id) {
+  DCHECK(notification.ping);
+  buzz::XmlElement* stanza = MakeIq(buzz::STR_GET,
+                                    buzz::Jid(buzz::STR_EMPTY),
+                                    task_id);
+  stanza->AddElement(new buzz::XmlElement(buzz::QN_PING));
+  return stanza;
+}
+
 }  // namespace notifier