Fix mac_views_browser compile after r406360 (MessageLoop::Run() protected on Mac)

chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.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 "chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 514 matching lines @@
   bool ReleaseMouseAsync() {
     return input_source() == INPUT_SOURCE_MOUSE &&
         ui_controls::SendMouseEvents(ui_controls::LEFT, ui_controls::UP);
   }
 
   void QuitWhenNotDragging() {
     if (input_source() == INPUT_SOURCE_MOUSE) {
       // Schedule observer to quit message loop when done dragging. This has to
       // be async so the message loop can run.
       test::QuitWhenNotDraggingImpl();
-      base::MessageLoop::current()->Run();
+      base::RunLoop().Run();
     } else {
       // Touch events are sync, so we know we're not in a drag session. But some
       // tests rely on the browser fully closing, which is async. So, run all
       // pending tasks.
       base::RunLoop run_loop;
       run_loop.RunUntilIdle();
     }
   }
 
   void AddBlankTabAndShow(Browser* browser) {
@@ skipping 1950 matching lines @@
                         DetachToBrowserTabDragControllerTest,
                         ::testing::Values("mouse", "touch"));
 INSTANTIATE_TEST_CASE_P(TabDragging,
                         DetachToBrowserTabDragControllerTestTouch,
                         ::testing::Values("touch"));
 #else
 INSTANTIATE_TEST_CASE_P(TabDragging,
                         DetachToBrowserTabDragControllerTest,
                         ::testing::Values("mouse"));
 #endif