Standardize usage of virtual/override/final specifiers.

chrome/browser/component_updater/test/component_updater_service_unittest.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_COMPONENT_UPDATER_TEST_COMPONENT_UPDATER_SERVICE_UNITTEST_H_
 #define CHROME_BROWSER_COMPONENT_UPDATER_TEST_COMPONENT_UPDATER_SERVICE_UNITTEST_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 22 matching lines @@
 class ComponentUpdaterTest : public testing::Test {
  public:
   enum TestComponents {
     kTestComponent_abag,
     kTestComponent_jebg,
     kTestComponent_ihfo,
   };
 
   ComponentUpdaterTest();
 
-  virtual ~ComponentUpdaterTest();
+  ~ComponentUpdaterTest() override;
 
-  virtual void SetUp();
+  void SetUp() override;
 
-  virtual void TearDown();
+  void TearDown() override;
 
   ComponentUpdateService* component_updater();
 
   // Makes the full path to a component updater test file.
   const base::FilePath test_file(const char* file);
 
   TestConfigurator* test_configurator();
 
   ComponentUpdateService::Status RegisterComponent(CrxComponent* com,
                                                    TestComponents component,
@@ skipping 28 matching lines @@
 class OnDemandTester {
  public:
   static ComponentUpdateService::Status OnDemand(
       ComponentUpdateService* cus,
       const std::string& component_id);
 };
 
 }  // namespace component_updater
 
 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_TEST_COMPONENT_UPDATER_SERVICE_UNITTEST_H_