Revert of Add thread checking to RunLoop, deprecate MessageLoopRunner.

chrome/browser/ui/views/ash/tab_scrubber_browsertest.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/ash/tab_scrubber.h"
 
 #include <memory>
 
 #include "ash/display/event_transformation_handler.h"
 #include "ash/shell.h"
@@ skipping 195 matching lines @@
     if (index == target_index_)
       quit_closure_.Run();
   }
 
   // History of tab activation. Scrub() resets it.
   std::vector<int> activation_order_;
 
  private:
   void RunUntilTabActive(Browser* browser, int target) {
     base::RunLoop run_loop;
-    quit_closure_ = content::GetDeferredQuitTaskForRunLoop(&run_loop);
+    quit_closure_ = content::GetQuitTaskForRunLoop(&run_loop);
     browser->tab_strip_model()->AddObserver(this);
     target_index_ = target;
     content::RunThisRunLoop(&run_loop);
     browser->tab_strip_model()->RemoveObserver(this);
     target_index_ = -1;
   }
 
   base::Closure quit_closure_;
   int target_index_;
 
@@ skipping 241 matching lines @@
 
   SendScrubEvent(browser(), 1);
   EXPECT_TRUE(TabScrubber::GetInstance()->IsActivationPending());
   browser()->tab_strip_model()->ToggleSelectionAt(0);
   browser()->tab_strip_model()->ToggleSelectionAt(2);
   browser()->tab_strip_model()->MoveSelectedTabsTo(2);
   EXPECT_EQ(0, TabScrubber::GetInstance()->highlighted_tab());
 }
 
 #endif  // defined(OS_CHROMEOS)