Remove calls to deprecated MessageLoop methods in chrome.

chrome/browser/extensions/api/storage/settings_sync_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 <stddef.h>
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 193 matching lines @@
                                   &MockExtensionSystemFactoryFunction);
 
     EventRouterFactory::GetInstance()->SetTestingFactory(profile_.get(),
                                                          &BuildEventRouter);
   }
 
   void TearDown() override {
     frontend_.reset();
     profile_.reset();
     // Execute any pending deletion tasks.
-    message_loop_.RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
   }
 
  protected:
   // Adds a record of an extension or app to the extension service, then returns
   // its storage area.
   ValueStore* AddExtensionAndGetStorage(
       const std::string& id, Manifest::Type type) {
     scoped_refptr<const Extension> extension =
         util::AddExtensionWithId(profile_.get(), id, type);
     return util::GetStorage(extension, frontend_.get());
@@ skipping 1186 matching lines @@
                             settings_namespace::SYNC,
                             base::Bind(&UnlimitedSyncStorageTestCallback));
   frontend_->RunWithStorage(extension,
                             settings_namespace::LOCAL,
                             base::Bind(&UnlimitedLocalStorageTestCallback));
 
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace extensions