Update {virtual,override,final} to follow C++11 style in chrome/browser/chromeos/login/ui.

chrome/browser/chromeos/login/ui/user_adding_screen_browsertest.cc

Index: chrome/browser/chromeos/login/ui/user_adding_screen_browsertest.cc
diff --git a/chrome/browser/chromeos/login/ui/user_adding_screen_browsertest.cc b/chrome/browser/chromeos/login/ui/user_adding_screen_browsertest.cc
index d21d17f1812d4f1b6ca912e450f6dd89e05d325f..39a1ebc286d2d775bb51711b6480d6ba4a27d9ac 100644
--- a/chrome/browser/chromeos/login/ui/user_adding_screen_browsertest.cc
+++ b/chrome/browser/chromeos/login/ui/user_adding_screen_browsertest.cc
@@ -41,14 +41,14 @@ class UserAddingScreenTest : public LoginManagerTest,
                            user_adding_finished_(0) {
   }
 
-  virtual void SetUpInProcessBrowserTestFixture() override {
+  void SetUpInProcessBrowserTestFixture() override {
     LoginManagerTest::SetUpInProcessBrowserTestFixture();
     UserAddingScreen::Get()->AddObserver(this);
   }
 
-  virtual void OnUserAddingFinished() override { ++user_adding_finished_; }
+  void OnUserAddingFinished() override { ++user_adding_finished_; }
 
-  virtual void OnUserAddingStarted() override { ++user_adding_started_; }
+  void OnUserAddingStarted() override { ++user_adding_started_; }
 
   void SetUserCanLock(user_manager::User* user, bool can_lock) {
     user->set_can_lock(can_lock);