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

chrome/browser/history/history_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 <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 35 matching lines @@
 // Notifies the main thread after all history backend thread tasks have run.
 class WaitForHistoryTask : public history::HistoryDBTask {
  public:
   WaitForHistoryTask() {}
 
   bool RunOnDBThread(history::HistoryBackend* backend,
                      history::HistoryDatabase* db) override {
     return true;
   }
 
-  void DoneRunOnMainThread() override { base::MessageLoop::current()->Quit(); }
+  void DoneRunOnMainThread() override {
+    base::MessageLoop::current()->QuitWhenIdle();
+  }
 
  private:
   ~WaitForHistoryTask() override {}
 
   DISALLOW_COPY_AND_ASSIGN(WaitForHistoryTask);
 };
 
 }  // namespace
 
 class HistoryBrowserTest : public InProcessBrowserTest {
@@ skipping 453 matching lines @@
 
   content::WebContents* active_web_contents =
       browser()->tab_strip_model()->GetActiveWebContents();
   ASSERT_EQ(web_contents, active_web_contents);
   ASSERT_EQ(history_url, active_web_contents->GetURL());
 
   content::WebContents* second_tab =
       browser()->tab_strip_model()->GetWebContentsAt(1);
   ASSERT_NE(history_url, second_tab->GetURL());
 }