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

remoting/host/signaling_connector.cc

Index: remoting/host/signaling_connector.cc
diff --git a/remoting/host/signaling_connector.cc b/remoting/host/signaling_connector.cc
index cf1d1499fa86c73d29183539e3753b12631163c5..c2ee3b34f8df7203170be5cc35fc8bb3660fc370 100644
--- a/remoting/host/signaling_connector.cc
+++ b/remoting/host/signaling_connector.cc
@@ -45,7 +45,7 @@ SignalingConnector::SignalingConnector(
     const base::Closure& auth_failed_callback)
     : signal_strategy_(signal_strategy),
       auth_failed_callback_(auth_failed_callback),
-      dns_blackhole_checker_(dns_blackhole_checker.Pass()),
+      dns_blackhole_checker_(std::move(dns_blackhole_checker)),
       oauth_token_getter_(oauth_token_getter),
       reconnect_attempts_(0) {
   DCHECK(!auth_failed_callback_.is_null());