Have content/ create and destroy its own threads.

chrome/browser/chromeos/proxy_config_service_impl_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 "chrome/browser/chromeos/proxy_config_service_impl.h"
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/format_macros.h"
 #include "base/json/json_value_serializer.h"
 #include "base/logging.h"
+#include "base/message_loop.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/dbus/dbus_thread_manager.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_pref_service.h"
 #include "content/test/test_browser_thread.h"
 #include "net/proxy/proxy_config_service_common_unittest.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 528 matching lines @@
     EXPECT_EQ(network_params.auto_detect, actual_config.auto_detect());
     EXPECT_EQ(network_params.pac_url, actual_config.pac_url());
     EXPECT_TRUE(network_params.proxy_rules.Matches(
         actual_config.proxy_rules()));
   }
 }
 
 }  // namespace
 
 }  // namespace chromeos