Update {virtual,override} to follow C++11 style in chrome.

chrome/browser/chromeos/settings/device_settings_provider_unittest.cc

 // Copyright (c) 2012 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/settings/device_settings_provider.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 34 matching lines @@
 class DeviceSettingsProviderTest : public DeviceSettingsTestBase {
  public:
   MOCK_METHOD1(SettingChanged, void(const std::string&));
   MOCK_METHOD0(GetTrustedCallback, void(void));
 
  protected:
   DeviceSettingsProviderTest()
       : local_state_(TestingBrowserProcess::GetGlobal()),
         user_data_dir_override_(chrome::DIR_USER_DATA) {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     DeviceSettingsTestBase::SetUp();
 
     EXPECT_CALL(*this, SettingChanged(_)).Times(AnyNumber());
     provider_.reset(
         new DeviceSettingsProvider(
             base::Bind(&DeviceSettingsProviderTest::SettingChanged,
                        base::Unretained(this)),
             &device_settings_service_));
     Mock::VerifyAndClearExpectations(this);
   }
 
-  virtual void TearDown() override {
-    DeviceSettingsTestBase::TearDown();
-  }
+  void TearDown() override { DeviceSettingsTestBase::TearDown(); }
 
   // Helper routine to enable/disable all reporting settings in policy.
   void SetReportingSettings(bool enable_reporting, int frequency) {
     EXPECT_CALL(*this, SettingChanged(_)).Times(AtLeast(1));
     em::DeviceReportingProto* proto =
         device_policy_.payload().mutable_device_reporting();
     proto->set_report_version_info(enable_reporting);
     proto->set_report_activity_times(enable_reporting);
     proto->set_report_boot_mode(enable_reporting);
     proto->set_report_location(enable_reporting);
@@ skipping 394 matching lines @@
   VerifyDomainAutoComplete(nullptr);
 
   // Check some meaningful value. Policy should be set.
   const std::string domain = "domain.test";
   const base::StringValue domain_value(domain);
   SetDomainAutoComplete(domain);
   VerifyDomainAutoComplete(&domain_value);
 }
 
 } // namespace chromeos