Use std::move() instead of .Pass() in remoting/host

remoting/host/host_change_notification_listener_unittest.cc

Index: remoting/host/host_change_notification_listener_unittest.cc
diff --git a/remoting/host/host_change_notification_listener_unittest.cc b/remoting/host/host_change_notification_listener_unittest.cc
index 0d3f231cc2421008ce476a146aabfd52b2c3a187..bdaff5b51bdb7d8c1956d8f6168717eb39b2b40a 100644
--- a/remoting/host/host_change_notification_listener_unittest.cc
+++ b/remoting/host/host_change_notification_listener_unittest.cc
@@ -78,7 +78,7 @@ class HostChangeNotificationListenerTest : public testing::Test {
     stanza->AddElement(host_changed);
     stanza->AddAttr(buzz::QN_FROM, botJid);
     stanza->AddAttr(buzz::QN_TO, kTestJid);
-    return stanza.Pass();
+    return stanza;
   }
 
   MockListener mock_listener_;