Remove calls to deprecated MessageLoop methods on Windows and Linux.

dbus/object_manager_unittest.cc

Index: dbus/object_manager_unittest.cc
diff --git a/dbus/object_manager_unittest.cc b/dbus/object_manager_unittest.cc
index ae03776a51df59a8a7e9903aa92aecb20ead67b4..d28368b35b037c9f0ef3037377d7a1b07dd788e7 100644
--- a/dbus/object_manager_unittest.cc
+++ b/dbus/object_manager_unittest.cc
@@ -13,6 +13,7 @@
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "dbus/bus.h"
@@ -404,10 +405,9 @@ TEST_F(ObjectManagerTest, PropertiesChangedAsObjectsReceived) {
   // after setting up the match rule for PropertiesChanged. We should process
   // the PropertiesChanged event right after that. If we don't receive it within
   // 2 seconds, then fail the test.
-  message_loop_.PostDelayedTask(
-      FROM_HERE,
-      base::Bind(&ObjectManagerTest::PropertiesChangedTestTimeout,
-                 base::Unretained(this)),
+  message_loop_.task_runner()->PostDelayedTask(
+      FROM_HERE, base::Bind(&ObjectManagerTest::PropertiesChangedTestTimeout,
+                            base::Unretained(this)),
       base::TimeDelta::FromSeconds(2));
 
   while (last_name_value_ != "ChangedTestServiceName" && !timeout_expired_) {