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

chrome/browser/chromeos/policy/device_local_account_policy_service_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/policy/device_local_account_policy_service.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 97 matching lines @@
 };
 
 class DeviceLocalAccountPolicyServiceTest
     : public DeviceLocalAccountPolicyServiceTestBase {
  public:
   MOCK_METHOD1(OnRefreshDone, void(bool));
 
  protected:
   DeviceLocalAccountPolicyServiceTest();
 
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
   void InstallDevicePolicy() override;
 
   MockDeviceLocalAccountPolicyServiceObserver service_observer_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DeviceLocalAccountPolicyServiceTest);
 };
 
 DeviceLocalAccountPolicyServiceTestBase::
@@ skipping 848 matching lines @@
   em::DeviceManagementResponse response;
   device_local_account_policy_.Build();
   response.mutable_policy_response()->add_response()->CopyFrom(
       device_local_account_policy_.policy());
   request_job->SendResponse(DM_STATUS_SUCCESS, response);
   FlushDeviceSettings();
   Mock::VerifyAndClearExpectations(&provider_observer_);
 }
 
 }  // namespace policy