Remove calls to deprecated MessageLoop methods in remoting.

remoting/host/chromeos/clipboard_aura_unittest.cc

Index: remoting/host/chromeos/clipboard_aura_unittest.cc
diff --git a/remoting/host/chromeos/clipboard_aura_unittest.cc b/remoting/host/chromeos/clipboard_aura_unittest.cc
index 2b7d413248da1c147e992eeb510442f405c2baf6..17a4ea34f24de876917259772be7da162a902861 100644
--- a/remoting/host/chromeos/clipboard_aura_unittest.cc
+++ b/remoting/host/chromeos/clipboard_aura_unittest.cc
@@ -120,13 +120,13 @@ TEST_F(ClipboardAuraTest, MonitorClipboardChanges) {
                                             Eq("Test data.")))).Times(1);
 
   base::RunLoop run_loop;
-  message_loop_.PostDelayedTask(
+  message_loop_.task_runner()->PostDelayedTask(
       FROM_HERE, base::Bind(&ClipboardAuraTest_MonitorClipboardChanges_Test::
                                 StopAndResetClipboard,
                             base::Unretained(this)),
       TestTimeouts::tiny_timeout());
-  message_loop_.PostDelayedTask(FROM_HERE, run_loop.QuitClosure(),
-                                TestTimeouts::tiny_timeout());
+  message_loop_.task_runner()->PostDelayedTask(
+      FROM_HERE, run_loop.QuitClosure(), TestTimeouts::tiny_timeout());
   run_loop.Run();
 }