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

chrome/browser/ui/ash/launcher/chrome_launcher_controller_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 "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 782 matching lines @@
   void TearDown() override {
     ChromeLauncherControllerTest::TearDown();
     user_manager_enabler_.reset();
     for (ProfileToNameMap::iterator it = created_profiles_.begin();
          it != created_profiles_.end(); ++it)
       profile_manager_->DeleteTestingProfile(it->second);
     chromeos::WallpaperManager::Shutdown();
 
     // A Task is leaked if we don't destroy everything, then run the message
     // loop.
-    base::MessageLoop::current()->PostTask(FROM_HERE,
-                                           base::MessageLoop::QuitClosure());
+    base::MessageLoop::current()->PostTask(
+        FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
     base::MessageLoop::current()->Run();
   }
 
   // Creates a profile for a given |user_name|. Note that this class will keep
   // the ownership of the created object.
   TestingProfile* CreateMultiUserProfile(const std::string& user_name) {
     std::string email_string = user_name + "@example.com";
     static_cast<ash::test::TestSessionStateDelegate*>(
         ash::Shell::GetInstance()->session_state_delegate())
         ->AddUser(email_string);
@@ skipping 1858 matching lines @@
 
   EXPECT_EQ(1, app_icon_loader->fetch_count());
   ASSERT_EQ(initial_size + 1, model_->items().size());
   EXPECT_TRUE(launcher_controller_->IsAppPinned("1"));
   EXPECT_FALSE(launcher_controller_->IsAppPinned("0"));
   EXPECT_EQ(ash::TYPE_APP_SHORTCUT, model_->items()[app_index].type);
 
   launcher_controller_->UnpinAppWithID("1");
   ASSERT_EQ(initial_size, model_->items().size());
 }