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

chrome/browser/sessions/session_restore_browsertest.cc

Index: chrome/browser/sessions/session_restore_browsertest.cc
diff --git a/chrome/browser/sessions/session_restore_browsertest.cc b/chrome/browser/sessions/session_restore_browsertest.cc
index 38155b3f76de00f2c20144ffce96683ba73d5b19..1dedb15e7e9fd4d7e993d43f981f2fa2833f4bff 100644
--- a/chrome/browser/sessions/session_restore_browsertest.cc
+++ b/chrome/browser/sessions/session_restore_browsertest.cc
@@ -72,7 +72,7 @@ class SessionRestoreTest : public InProcessBrowserTest {
   }
 #endif
 
-  virtual void SetUpOnMainThread() override {
+  void SetUpOnMainThread() override {
     active_browser_list_ = BrowserList::GetInstance(chrome::GetActiveDesktop());
 
     SessionStartupPref pref(SessionStartupPref::LAST);
@@ -93,7 +93,7 @@ class SessionRestoreTest : public InProcessBrowserTest {
     InProcessBrowserTest::SetUpOnMainThread();
   }
 
-  virtual bool SetUpUserDataDirectory() override {
+  bool SetUpUserDataDirectory() override {
     url1_ = ui_test_utils::GetTestUrl(
         base::FilePath().AppendASCII("session_history"),
         base::FilePath().AppendASCII("bot1.html"));