Standardize usage of virtual/override/final specifiers.

chrome/browser/search/instant_unittest_base.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_SEARCH_INSTANT_UNITTEST_BASE_H_
 #define CHROME_BROWSER_SEARCH_INSTANT_UNITTEST_BASE_H_
 
 #include <string>
 
 #include "base/metrics/field_trial.h"
 #include "chrome/browser/search/instant_service.h"
 #include "chrome/test/base/browser_with_test_window_test.h"
 #include "components/search_engines/template_url_service.h"
 
 class InstantServiceObserver;
 
 // This class provides an extension on top of BrowserWithTestWindowTest, and
 // adds some utility methods which can be useful for various unit tests for
 // Embedded Search / Instant implementation classes.
 class InstantUnitTestBase : public BrowserWithTestWindowTest {
  protected:
   InstantUnitTestBase();
-  virtual ~InstantUnitTestBase();
+  ~InstantUnitTestBase() override;
 
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
 #if !defined(OS_IOS) && !defined(OS_ANDROID)
   // Query extraction is always enabled on Android and iOS.
   void SetUpWithoutQueryExtraction();
 #endif
 
   // Adds and sets the default search provider using the base_url.
   // The base_url should have the http[s]:// prefix and a trailing / after the
   // TLD.
   // It will always use an instant-enabled configuration using a
@@ skipping 12 matching lines @@
   scoped_ptr<base::FieldTrialList> field_trial_list_;
 
  private:
   // BrowserWithTestWindowTest override:
   TestingProfile* CreateProfile() override;
 
   void SetUpHelper();
 };
 
 #endif  // CHROME_BROWSER_SEARCH_INSTANT_UNITTEST_BASE_H_