Remove calls to deprecated MessageLoop methods in chrome.

chrome/browser/media_galleries/media_galleries_permissions_unittest.cc

 // Copyright 2013 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 "base/macros.h"
 #include "base/run_loop.h"
@@ skipping 36 matching lines @@
   void TearDown() override {
     Verify();
 
     // Reset ExtensionPrefs, and re-verify.
     prefs_.ResetPrefRegistry();
     RegisterPreferences(prefs_.pref_registry().get());
     prefs_.RecreateExtensionPrefs();
     gallery_prefs_->SetExtensionPrefsForTesting(prefs());
     Verify();
     prefs_.pref_service()->CommitPendingWrite();
-    message_loop_.RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
 
     storage_monitor::TestStorageMonitor::Destroy();
 
     testing::Test::TearDown();
   }
 
   void Initialize() override {
     file_thread_.Start();
 
     ASSERT_TRUE(storage_monitor::TestStorageMonitor::CreateAndInstall());
@@ skipping 84 matching lines @@
 
   // Needed for |gallery_prefs_| to initialize correctly.
   EnsureMediaDirectoriesExists ensure_media_directories_exists_;
   content::TestBrowserThread file_thread_;
 
   std::unique_ptr<TestingProfile> profile_;
   std::unique_ptr<MediaGalleriesPreferences> gallery_prefs_;
 };
 
 TEST_F(MediaGalleriesPermissionsTest, MediaGalleries) {}