Remove calls to deprecated MessageLoop methods on Windows and Linux.

remoting/test/protocol_perftest.cc

Index: remoting/test/protocol_perftest.cc
diff --git a/remoting/test/protocol_perftest.cc b/remoting/test/protocol_perftest.cc
index f0c32cc00f0667eddaca81cf41a1b58035e1300a..e6640fece3e6b7634361a1e0cde0eb15fa1a3727 100644
--- a/remoting/test/protocol_perftest.cc
+++ b/remoting/test/protocol_perftest.cc
@@ -123,7 +123,7 @@ class ProtocolPerfTest
     host_thread_.task_runner()->DeleteSoon(FROM_HERE, host_.release());
     host_thread_.task_runner()->DeleteSoon(FROM_HERE,
                                            host_signaling_.release());
-    message_loop_.RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
   }
 
   // ClientUserInterface interface.