Remove MessageLoop::current()->RunUntilIdle() in components.

components/history/core/browser/expire_history_backend_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/history/core/browser/expire_history_backend.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <memory>
 #include <string>
 #include <utility>
 
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
 #include "base/scoped_observer.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/history/core/browser/history_backend_client.h"
 #include "components/history/core/browser/history_backend_notifier.h"
 #include "components/history/core/browser/history_constants.h"
 #include "components/history/core/browser/history_database.h"
 #include "components/history/core/browser/thumbnail_database.h"
 #include "components/history/core/browser/top_sites.h"
 #include "components/history/core/browser/top_sites_impl.h"
@@ skipping 118 matching lines @@
 
     expirer_.SetDatabases(nullptr, nullptr);
 
     main_db_.reset();
     thumb_db_.reset();
 
     top_sites_->ShutdownOnUIThread();
     top_sites_ = nullptr;
 
     if (base::MessageLoop::current())
-      base::MessageLoop::current()->RunUntilIdle();
+      base::RunLoop().RunUntilIdle();
 
     pref_service_.reset();
   }
 
   // HistoryBackendNotifier:
   void NotifyFaviconsChanged(const std::set<GURL>& page_urls,
                              const GURL& icon_url) override {}
   void NotifyURLVisited(ui::PageTransition transition,
                         const URLRow& row,
                         const RedirectList& redirects,
@@ skipping 719 matching lines @@
   EXPECT_TRUE(all->Read(now, main_db_.get(), &visits, 1));
   EXPECT_EQ(1U, visits.size());
 }
 
 // TODO(brettw) add some visits with no URL to make sure everything is updated
 // properly. Have the visits also refer to nonexistent FTS rows.
 //
 // Maybe also refer to invalid favicons.
 
 }  // namespace history