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

chrome/browser/external_protocol/external_protocol_handler_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 "chrome/browser/external_protocol/external_protocol_handler.h"
 
 #include "base/message_loop/message_loop.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 67 matching lines @@
     has_prompted_ = true;
   }
 
   void LaunchUrlWithoutSecurityCheck(const GURL& url) override {
     ASSERT_EQ(block_state_, ExternalProtocolHandler::DONT_BLOCK);
     ASSERT_NE(os_state_, ShellIntegration::IS_DEFAULT);
     has_launched_ = true;
   }
 
   void FinishedProcessingCheck() override {
-    base::MessageLoop::current()->Quit();
+    base::MessageLoop::current()->QuitWhenIdle();
   }
 
   void set_os_state(ShellIntegration::DefaultWebClientState value) {
     os_state_ = value;
   }
 
   void set_block_state(ExternalProtocolHandler::BlockState value) {
     block_state_ = value;
   }
 
@@ skipping 95 matching lines @@
   DoTest(ExternalProtocolHandler::UNKNOWN,
          ShellIntegration::NOT_DEFAULT,
          true, false, false);
 }
 
 TEST_F(ExternalProtocolHandlerTest, TestLaunchSchemeUnknownChromeUnknown) {
   DoTest(ExternalProtocolHandler::UNKNOWN,
          ShellIntegration::UNKNOWN_DEFAULT,
          true, false, false);
 }