Fix leaks in GoogleURLTrackerTest::CreateRequestContext()

chrome/common/net/test_url_fetcher_factory.h

 // Copyright (c) 2009 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.
 
 #ifndef CHROME_COMMON_NET_TEST_URL_FETCHER_FACTORY_H_
 #define CHROME_COMMON_NET_TEST_URL_FETCHER_FACTORY_H_
 #pragma once
 
 #include <map>
 #include <string>
 
 #include "chrome/common/net/url_fetcher.h"
 #include "googleurl/src/gurl.h"
 
 // TestURLFetcher and TestURLFetcherFactory are used for testing consumers of
 // URLFetcher. TestURLFetcherFactory is a URLFetcher::Factory that creates
 // TestURLFetchers. TestURLFetcher::Start is overriden to do nothing. It is
 // expected that you'll grab the delegate from the TestURLFetcher and invoke
 // the callback method when appropriate. In this way it's easy to mock a
 // URLFetcher.
 // Typical usage:
 //   // TestURLFetcher requires a MessageLoop:
-//   MessageLoopForUI message_loop;
+//   MessageLoopForIO message_loop;
+//   // and IO thread to clean up request_context etc.
+//   ChromeThread io_thread(ChromeThread::IO, &message_loop);
 //   // Create and register factory.
 //   TestURLFetcherFactory factory;
 //   URLFetcher::set_factory(&factory);
 //   // Do something that triggers creation of a URLFetcher.
 //   TestURLFetcher* fetcher = factory.GetFetcherByID(expected_id);
 //   DCHECK(fetcher);
 //   // Notify delegate with whatever data you want.
 //   fetcher->delegate()->OnURLFetchComplete(...);
 //   // Make sure consumer of URLFetcher does the right thing.
 //   ...
@@ skipping 40 matching lines @@
 
  private:
   // Maps from id passed to create to the returned URLFetcher.
   typedef std::map<int, TestURLFetcher*> Fetchers;
   Fetchers fetchers_;
 
   DISALLOW_COPY_AND_ASSIGN(TestURLFetcherFactory);
 };
 
 #endif  // CHROME_COMMON_NET_TEST_URL_FETCHER_FACTORY_H_