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

chrome/browser/extensions/window_open_apitest.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/memory/scoped_vector.h"
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 215 matching lines @@
       ui::PAGE_TRANSITION_TYPED, false));
 
   EXPECT_TRUE(WaitForTabsAndPopups(browser(), 3, 1, 0));
 }
 
 IN_PROC_BROWSER_TEST_F(ExtensionApiTest, WindowArgumentsOverflow) {
   ASSERT_TRUE(RunExtensionTest("window_open/argument_overflow")) << message_;
 }
 
 class WindowOpenPanelDisabledTest : public ExtensionApiTest {
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(CommandLine* command_line) override {
     ExtensionApiTest::SetUpCommandLine(command_line);
     // TODO(jennb): Re-enable when panels are enabled by default.
     // command_line->AppendSwitch(switches::kDisablePanels);
   }
 };
 
 IN_PROC_BROWSER_TEST_F(WindowOpenPanelDisabledTest,
                        DISABLED_WindowOpenPanelNotEnabled) {
   ASSERT_TRUE(RunExtensionTest("window_open/panel_not_enabled")) << message_;
 }
 
 class WindowOpenPanelTest : public ExtensionApiTest {
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(CommandLine* command_line) override {
     ExtensionApiTest::SetUpCommandLine(command_line);
     command_line->AppendSwitch(switches::kEnablePanels);
   }
 };
 
 #if defined(USE_ASH_PANELS)
 // On Ash, this currently fails because we're currently opening new panel
 // windows as popup windows instead.
 #define MAYBE_WindowOpenPanel DISABLED_WindowOpenPanel
 #else
@@ skipping 244 matching lines @@
                      last_loaded_extension_id() + "/newtab.html"),
                  false,
                  &newtab));
 
   // Extension API should succeed.
   bool result = false;
   ASSERT_TRUE(content::ExecuteScriptAndExtractBool(newtab, "testExtensionApi()",
                                                    &result));
   EXPECT_TRUE(result);
 }