Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/toolbar/browser_actions_bar_browsertest.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_TOOLBAR_BROWSER_ACTIONS_BAR_BROWSERTEST_H_
 #define CHROME_BROWSER_UI_TOOLBAR_BROWSER_ACTIONS_BAR_BROWSERTEST_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 
 namespace extensions {
 class Extension;
 }
 
 class BrowserActionTestUtil;
 
 // A platform-independent browser test class for the browser actions bar.
 class BrowserActionsBarBrowserTest : public ExtensionBrowserTest {
  protected:
   BrowserActionsBarBrowserTest();
-  virtual ~BrowserActionsBarBrowserTest();
+  ~BrowserActionsBarBrowserTest() override;
 
   void SetUpCommandLine(base::CommandLine* command_line) override;
   void SetUpOnMainThread() override;
   void TearDownOnMainThread() override;
 
   BrowserActionTestUtil* browser_actions_bar() {
     return browser_actions_bar_.get();
   }
 
   // Creates three different extensions, each with a browser action, and adds
@@ skipping 16 matching lines @@
 
   // Extensions with browser actions used for testing.
   scoped_refptr<const extensions::Extension> extension_a_;
   scoped_refptr<const extensions::Extension> extension_b_;
   scoped_refptr<const extensions::Extension> extension_c_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserActionsBarBrowserTest);
 };
 
 #endif  // CHROME_BROWSER_UI_TOOLBAR_BROWSER_ACTIONS_BAR_BROWSERTEST_H_