Standardize usage of virtual/override/final specifiers.

chrome/test/base/web_ui_browser_test.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_TEST_BASE_WEB_UI_BROWSER_TEST_H_
 #define CHROME_TEST_BASE_WEB_UI_BROWSER_TEST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 21 matching lines @@
   IN_PROC_BROWSER_TEST_F(x, y) { ASSERT_TRUE(RunJavascriptTest(#y)); }
 
 // The runner of WebUI javascript based tests.
 // See chrome/test/data/webui/test_api.js for the javascript side test API's.
 //
 // These tests should follow the form given in:
 // chrome/test/data/webui/sample_downloads.js.
 // and the lone test within this class.
 class WebUIBrowserTest : public JavaScriptBrowserTest {
  public:
-  virtual ~WebUIBrowserTest();
+  ~WebUIBrowserTest() override;
 
   // Runs a javascript function in the context of all libraries.
   // Note that calls to functions in test_api.js are not supported.
   // Takes ownership of Value* arguments.
   bool RunJavascriptFunction(const std::string& function_name);
   bool RunJavascriptFunction(const std::string& function_name,
                              base::Value* arg);
   bool RunJavascriptFunction(const std::string& function_name,
                              base::Value* arg1,
                              base::Value* arg2);
@@ skipping 102 matching lines @@
   std::string preload_test_name_;
 
   // When this is non-NULL, this is The WebUI instance used for testing.
   // Otherwise the selected tab's web_ui is used.
   content::WebUI* override_selected_web_ui_;
 
   scoped_ptr<TestChromeWebUIControllerFactory> test_factory_;
 };
 
 #endif  // CHROME_TEST_BASE_WEB_UI_BROWSER_TEST_H_