Update {virtual,override,final} to follow C++11 style in chrome/browser/chromeos/settings.

chrome/browser/chromeos/settings/shutdown_policy_handler_unittest.cc

 // Copyright 2014 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/shutdown_policy_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 22 matching lines @@
       : cros_settings_(nullptr),
         callback_called_(false),
         reboot_on_shutdown_(false),
         delegate_invocations_count_(0) {
     base::CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kStubCrosSettings);
     test_cros_settings_.reset(new ScopedTestCrosSettings);
 }
 
   // testing::Test:
-  virtual void SetUp() override {
+void SetUp() override {
     testing::Test::SetUp();
     cros_settings_ = CrosSettings::Get();
     DBusThreadManager::Initialize();
   }
 
-  virtual void TearDown() override {
-    DBusThreadManager::Shutdown();
-  }
+  void TearDown() override { DBusThreadManager::Shutdown(); }
 
   void SetRebootOnShutdown(bool reboot_on_shutdown) {
     const base::FundamentalValue reboot_on_shutdown_value(reboot_on_shutdown);
     CrosSettings::Get()
         ->GetProvider(kRebootOnShutdown)
         ->Set(kRebootOnShutdown, reboot_on_shutdown_value);
     base::RunLoop().RunUntilIdle();
   }
 
   // ShutdownPolicyHandler::Delegate:
@@ skipping 57 matching lines @@
   callback_called_ = false;
   shutdown_policy_observer.CheckIfRebootOnShutdown(
       base::Bind(&ShutdownPolicyHandlerTest::ResultCallback,
                  base::Unretained(this)));
   base::RunLoop().RunUntilIdle();
   EXPECT_TRUE(callback_called_);
   EXPECT_EQ(false, reboot_on_shutdown_);
 }
 
 }  // namespace chromeos