Remove more unnecessary ChromeURLRequestContext members.

chrome/browser/net/pref_proxy_config_service_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/net/pref_proxy_config_service.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
+#include "base/message_loop.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/prefs/pref_service_mock_builder.h"
 #include "chrome/browser/prefs/proxy_config_dictionary.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/testing_pref_service.h"
+#include "content/browser/browser_thread.h"
 #include "net/proxy/proxy_config_service_common_unittest.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::_;
 using testing::Mock;
 
 namespace {
 
 const char kFixedPacUrl[] = "http://chromium.org/fixed_pac_url";
@@ skipping 438 matching lines @@
     net::ProxyRulesExpectation::Empty(),
   },
 };
 
 INSTANTIATE_TEST_CASE_P(
     PrefProxyConfigServiceCommandLineTestInstance,
     PrefProxyConfigServiceCommandLineTest,
     testing::ValuesIn(kCommandLineTestParams));
 
 }  // namespace