Cosmetic cleanups in chrome/browser/policy/

chrome/browser/policy/device_policy_cache_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/policy/device_policy_cache.h"
 
 #include "chrome/browser/chromeos/cros/cryptohome_library.h"
 #include "chrome/browser/chromeos/login/mock_signed_settings_helper.h"
 #include "chrome/browser/policy/cloud_policy_data_store.h"
 #include "chrome/browser/policy/enterprise_install_attributes.h"
 #include "policy/configuration_policy_type.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace policy {
 
 namespace {
 
 // Test registration user name.
 const char kTestUser[] = "test@example.com";
 
 using ::chromeos::SignedSettings;
-using ::chromeos::SignedSettingsHelper;
 using ::testing::_;
 using ::testing::InSequence;
 
 void CreateRefreshRatePolicy(em::PolicyFetchResponse* policy,
                              const std::string& user,
                              int refresh_rate) {
   // This method omits a few fields which currently aren't needed by tests:
   // timestamp, machine_name, policy_type, public key info.
   em::PolicyData signed_response;
   em::ChromeDeviceSettingsProto settings;
@@ skipping 199 matching lines @@
                             GetRecommendedPolicy(kPolicyProxyMode)));
   EXPECT_TRUE(Value::Equals(&expected_proxy_server,
                             GetRecommendedPolicy(kPolicyProxyServer)));
   EXPECT_TRUE(Value::Equals(&expected_proxy_pac_url,
                             GetRecommendedPolicy(kPolicyProxyPacUrl)));
   EXPECT_TRUE(Value::Equals(&expected_proxy_bypass_list,
                             GetRecommendedPolicy(kPolicyProxyBypassList)));
 }
 
 }  // namespace policy