replace OVERRIDE and FINAL with override and final in ash/

ash/system/chromeos/supervised/tray_supervised_user_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 "ash/system/chromeos/supervised/tray_supervised_user.h"
 
 #include "ash/shell.h"
 #include "ash/system/user/login_status.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/test_system_tray_delegate.h"
@@ skipping 27 matching lines @@
       return *iter;
   }
   return NULL;
 }
 
 class TraySupervisedUserInitialTest : public TraySupervisedUserTest {
  public:
   TraySupervisedUserInitialTest() {}
   virtual ~TraySupervisedUserInitialTest() {}
 
-  virtual void SetUp() OVERRIDE;
-  virtual void TearDown() OVERRIDE;
+  virtual void SetUp() override;
+  virtual void TearDown() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TraySupervisedUserInitialTest);
 };
 
 void TraySupervisedUserInitialTest::SetUp() {
   test::TestSystemTrayDelegate::SetInitialLoginStatus(
       user::LOGGED_IN_SUPERVISED);
   test::AshTestBase::SetUp();
 }
@@ skipping 18 matching lines @@
 TEST_F(TraySupervisedUserInitialTest, SupervisedUserNoCrash) {
   // Initial login status is already SUPERVISED, which should create
   // the notification and should not cause crashes.
   message_center::Notification* notification = GetPopup();
   ASSERT_NE(static_cast<message_center::Notification*>(NULL), notification);
   EXPECT_EQ(static_cast<int>(message_center::SYSTEM_PRIORITY),
             notification->rich_notification_data().priority);
 }
 
 }  // namespace