Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/webui/ntp/new_tab_ui_browsertest.cc

 // Copyright (c) 2012 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/command_line.h"
 #include "base/logging.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
@@ skipping 24 matching lines @@
 }
 
 }  // namespace
 
 class NewTabUIBrowserTest : public InProcessBrowserTest {
  public:
   NewTabUIBrowserTest() {
     logging::SetLogMessageHandler(&HandleMessage);
   }
 
-  virtual ~NewTabUIBrowserTest() {
-    logging::SetLogMessageHandler(NULL);
-  }
+  ~NewTabUIBrowserTest() override { logging::SetLogMessageHandler(NULL); }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     InProcessBrowserTest::TearDown();
     ASSERT_FALSE(had_console_errors);
   }
 };
 
 // TODO(samarth): delete along with rest of NTP4 code.
 // #if defined(OS_WIN)
 // // Flaky on Windows (http://crbug.com/174819)
 // #define MAYBE_LoadNTPInExistingProcess DISABLED_LoadNTPInExistingProcess
 // #else
@@ skipping 117 matching lines @@
 
   // We don't use ui_test_utils::NavigateToURLWithDisposition because that waits
   // for current loading to stop.
   content::TestNavigationObserver observer(
       browser()->tab_strip_model()->GetActiveWebContents());
   browser()->OpenURL(OpenURLParams(
       GURL("data:text/html,hello world"), Referrer(), CURRENT_TAB,
       ui::PAGE_TRANSITION_TYPED, false));
   observer.Wait();
 }