Standardize usage of virtual/override/final in chrome/browser/

chrome/browser/autofill/content_autofill_driver_browsertest.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 "base/memory/scoped_ptr.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/url_constants.h"
@@ skipping 47 matching lines @@
 // instance.
 class TestContentAutofillDriver : public ContentAutofillDriver {
  public:
   TestContentAutofillDriver(content::WebContents* web_contents,
                             AutofillClient* client)
       : ContentAutofillDriver(
             web_contents,
             client,
             g_browser_process->GetApplicationLocale(),
             AutofillManager::ENABLE_AUTOFILL_DOWNLOAD_MANAGER) {}
-  virtual ~TestContentAutofillDriver() {}
+  ~TestContentAutofillDriver() override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestContentAutofillDriver);
 };
 
 }  // namespace
 
 class ContentAutofillDriverBrowserTest : public InProcessBrowserTest,
                                          public content::WebContentsObserver {
  public:
@@ skipping 71 matching lines @@
   browser()->OpenURL(content::OpenURLParams(GURL(chrome::kChromeUIAboutURL),
                                             content::Referrer(),
                                             CURRENT_TAB,
                                             ui::PAGE_TRANSITION_TYPED,
                                             false));
   runner->Run();
   nav_entry_committed_callback_.Reset();
 }
 
 }  // namespace autofill