Have content/ create and destroy its own threads.

chrome/browser/chromeos/login/cookie_fetcher_unittest.cc

 // Copyright (c) 2011 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 <errno.h>
 
 #include <string>
 
+#include "base/message_loop.h"
 #include "chrome/browser/chromeos/login/client_login_response_handler.h"
 #include "chrome/browser/chromeos/login/cookie_fetcher.h"
 #include "chrome/browser/chromeos/login/issue_response_handler.h"
 #include "chrome/browser/chromeos/login/mock_auth_response_handler.h"
 #include "chrome/common/net/gaia/gaia_urls.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/common/url_fetcher.h"
 #include "content/test/test_browser_thread.h"
 #include "googleurl/src/gurl.h"
 #include "net/url_request/url_request_status.h"
@@ skipping 167 matching lines @@
   IssueResponseHandler handler(NULL);
   std::string expected(IssueResponseHandler::BuildTokenAuthUrlWithToken(
       std::string("a\n")));
 
   scoped_ptr<content::URLFetcher> fetcher(
       handler.Handle(std::string("a\n"), NULL));
   EXPECT_EQ(expected, handler.token_url());
 }
 
 }  // namespace chromeos