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

chrome/browser/password_manager/native_backend_gnome_x_unittest.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 <stdarg.h>
 
 #include "base/basictypes.h"
 #include "base/location.h"
 #include "base/prefs/pref_service.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 387 matching lines @@
     other_auth_.origin = GURL("http://www.example.com/");
     other_auth_.username_value = UTF8ToUTF16("username");
     other_auth_.password_value = UTF8ToUTF16("pass");
     other_auth_.signon_realm = "http://www.example.com/Realm";
     other_auth_.date_created = base::Time::Now();
     other_auth_.date_synced = base::Time::Now();
   }
 
   void TearDown() override {
     base::ThreadTaskRunnerHandle::Get()->PostTask(
-        FROM_HERE, base::MessageLoop::QuitClosure());
+        FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
     base::MessageLoop::current()->Run();
     db_thread_.Stop();
   }
 
   void RunBothThreads() {
     // First we post a message to the DB thread that will run after all other
     // messages that have been posted to the DB thread (we don't expect more
     // to be posted), which posts a message to the UI thread to quit the loop.
     // That way we can run both loops and be sure that the UI thread loop will
     // quit so we can get on with the rest of the test.
     BrowserThread::PostTask(BrowserThread::DB, FROM_HERE,
         base::Bind(&PostQuitTask, &message_loop_));
     base::MessageLoop::current()->Run();
   }
 
   static void PostQuitTask(base::MessageLoop* loop) {
-    loop->task_runner()->PostTask(FROM_HERE, base::MessageLoop::QuitClosure());
+    loop->task_runner()->PostTask(FROM_HERE,
+                                  base::MessageLoop::QuitWhenIdleClosure());
   }
 
   void CheckUint32Attribute(const MockKeyringItem* item,
                             const std::string& attribute,
                             uint32_t value) {
     MockKeyringItem::attribute_map::const_iterator it =
         item->attributes.find(attribute);
     EXPECT_NE(item->attributes.end(), it);
     if (it != item->attributes.end()) {
       EXPECT_EQ(MockKeyringItem::ItemAttribute::UINT32, it->second.type);
@@ skipping 761 matching lines @@
 
   EXPECT_EQ(1u, form_list.size());
   EXPECT_EQ(form_google_, *form_list[0]);
 
   EXPECT_EQ(1u, mock_keyring_items.size());
   if (mock_keyring_items.size() > 0)
     CheckMockKeyringItem(&mock_keyring_items[0], form_google_, "chrome-42");
 }
 
 // TODO(mdm): add more basic tests here at some point.