Remove calls to deprecated MessageLoop methods on Windows and Linux.

chrome/browser/local_discovery/local_domain_resolver_unittest.cc

Index: chrome/browser/local_discovery/local_domain_resolver_unittest.cc
diff --git a/chrome/browser/local_discovery/local_domain_resolver_unittest.cc b/chrome/browser/local_discovery/local_domain_resolver_unittest.cc
index b66f2b4ddc3ba01addaee57f197e3b399179414d..241c3a14c580e6c24f5e19b8629cbcbd6e6fb87b 100644
--- a/chrome/browser/local_discovery/local_domain_resolver_unittest.cc
+++ b/chrome/browser/local_discovery/local_domain_resolver_unittest.cc
@@ -5,6 +5,7 @@
 #include <stdint.h>
 
 #include "base/location.h"
+#include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/local_discovery/service_discovery_client_impl.h"
@@ -84,13 +85,11 @@ class LocalDomainResolverTest : public testing::Test {
   }
 
   void RunFor(base::TimeDelta time_period) {
-    base::CancelableCallback<void()> callback(
-        base::Bind(&base::MessageLoop::QuitWhenIdle,
-                   base::Unretained(base::MessageLoop::current())));
+    base::RunLoop run_loop;
+    base::CancelableCallback<void()> callback(run_loop.QuitWhenIdleClosure());
     base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
         FROM_HERE, callback.callback(), time_period);
-
-    base::MessageLoop::current()->Run();
+    run_loop.Run();
     callback.Cancel();
   }