Remove calls to deprecated MessageLoop methods in components.

components/sync_driver/glue/ui_model_worker_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/sync_driver/glue/ui_model_worker.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using browser_sync::UIModelWorker;
 using syncer::SyncerError;
 
 class UIModelWorkerVisitor {
@@ skipping 63 matching lines @@
       base::WaitableEvent::InitialState::NOT_SIGNALED);
   std::unique_ptr<UIModelWorkerVisitor> v(
       new UIModelWorkerVisitor(&v_was_run, true));
 
   syncer_thread()->task_runner()->PostTask(
       FROM_HERE,
       base::Bind(&Syncer::SyncShare, base::Unretained(syncer()), v.get()));
 
   // We are on the UI thread, so run our loop to process the
   // (hopefully) scheduled task from a SyncShare invocation.
-  base::MessageLoop::current()->Run();
+  base::RunLoop().Run();
   syncer_thread()->Stop();
 }