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

chrome/browser/printing/printing_layout_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 "base/command_line.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
@@ skipping 62 matching lines @@
   }
 
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) {
     ASSERT_EQ(chrome::NOTIFICATION_PRINT_JOB_EVENT, type);
     switch (content::Details<printing::JobEventDetails>(details)->type()) {
       case printing::JobEventDetails::JOB_DONE: {
         // Succeeded.
         base::MessageLoop::current()->PostTask(
-            FROM_HERE, base::MessageLoop::QuitClosure());
+            FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
         break;
       }
       case printing::JobEventDetails::USER_INIT_CANCELED:
       case printing::JobEventDetails::FAILED: {
         // Failed.
         ASSERT_TRUE(false);
         base::MessageLoop::current()->PostTask(
-            FROM_HERE, base::MessageLoop::QuitClosure());
+            FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
         break;
       }
       case printing::JobEventDetails::NEW_DOC:
       case printing::JobEventDetails::USER_INIT_DONE:
       case printing::JobEventDetails::DEFAULT_INIT_DONE:
       case printing::JobEventDetails::NEW_PAGE:
       case printing::JobEventDetails::PAGE_DONE:
       case printing::JobEventDetails::DOC_DONE:
       case printing::JobEventDetails::ALL_PAGES_REQUESTED: {
         // Don't care.
@@ skipping 358 matching lines @@
 
     // Force a navigation elsewhere to verify that it's fine with it.
     url = test_server()->GetURL("files/printing/test1.html");
     ui_test_utils::NavigateToURL(browser(), url);
   }
   chrome::CloseWindow(browser());
   content::RunAllPendingInMessageLoop();
 
   EXPECT_EQ(0., CompareWithResult(L"iframe")) << L"iframe";
 }