Don't use base::MessageLoop::{Quit,QuitClosure} in chrome/

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 <algorithm>
 
 #include "ash/wm/window_state.h"
 #include "base/bind.h"
@@ skipping 78 matching lines @@
  public:
   QuitDraggingObserver() {
     registrar_.Add(this, chrome::NOTIFICATION_TAB_DRAG_LOOP_DONE,
                    content::NotificationService::AllSources());
   }
 
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override {
     DCHECK_EQ(chrome::NOTIFICATION_TAB_DRAG_LOOP_DONE, type);
-    base::MessageLoopForUI::current()->Quit();
+    base::MessageLoopForUI::current()->QuitWhenIdle();
     delete this;
   }
 
  private:
   ~QuitDraggingObserver() override {}
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(QuitDraggingObserver);
 };
@@ skipping 2243 matching lines @@
                         DetachToBrowserTabDragControllerTest,
                         ::testing::Values("mouse", "touch"));
 INSTANTIATE_TEST_CASE_P(TabDragging,
                         DetachToBrowserTabDragControllerTestTouch,
                         ::testing::Values("touch"));
 #elif defined(USE_ASH)
 INSTANTIATE_TEST_CASE_P(TabDragging,
                         DetachToBrowserTabDragControllerTest,
                         ::testing::Values("mouse"));
 #endif