Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/browser_command_controller_unittest.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 "chrome/browser/ui/browser_command_controller.h"
 
 #include "base/command_line.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/command_updater.h"
@@ skipping 310 matching lines @@
   bool fullscreen_;
 
   DISALLOW_COPY_AND_ASSIGN(FullscreenTestBrowserWindow);
 };
 
 // Test that uses FullscreenTestBrowserWindow for its window.
 class BrowserCommandControllerFullscreenTest
     : public BrowserWithTestWindowTest {
  public:
   BrowserCommandControllerFullscreenTest() {}
-  virtual ~BrowserCommandControllerFullscreenTest() {}
+  ~BrowserCommandControllerFullscreenTest() override {}
 
   // BrowserWithTestWindowTest overrides:
   BrowserWindow* CreateBrowserWindow() override {
     return new FullscreenTestBrowserWindow;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BrowserCommandControllerFullscreenTest);
 };
 
@@ skipping 107 matching lines @@
 
 TEST_F(BrowserCommandControllerTest, OnSigninAllowedPrefChange) {
   chrome::BrowserCommandController command_controller(browser());
   const CommandUpdater* command_updater = command_controller.command_updater();
 
   // Check that the SYNC_SETUP command is updated on preference change.
   EXPECT_TRUE(command_updater->IsCommandEnabled(IDC_SHOW_SYNC_SETUP));
   profile()->GetPrefs()->SetBoolean(prefs::kSigninAllowed, false);
   EXPECT_FALSE(command_updater->IsCommandEnabled(IDC_SHOW_SYNC_SETUP));
 }