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

jingle/notifier/listener/fake_push_client.cc

Index: jingle/notifier/listener/fake_push_client.cc
diff --git a/jingle/notifier/listener/fake_push_client.cc b/jingle/notifier/listener/fake_push_client.cc
index 0565c3c1ed51c038eded992b2cfb3f213c6b0d02..0a000f9dbc527958ea6cb6cbb059fe9b4dbf8ad2 100644
--- a/jingle/notifier/listener/fake_push_client.cc
+++ b/jingle/notifier/listener/fake_push_client.cc
@@ -35,6 +35,9 @@ void FakePushClient::SendNotification(const Notification& notification) {
   sent_notifications_.push_back(notification);
 }
 
+void FakePushClient::SendPing() {
+}
+
 void FakePushClient::EnableNotifications() {
   FOR_EACH_OBSERVER(PushClientObserver, observers_,
                     OnNotificationsEnabled());