Standardize usage of virtual/override/final specifiers.

chrome/browser/safe_browsing/safe_browsing_blocking_page_test.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.
 //
 // This test creates a fake safebrowsing service, where we can inject
 // malware and phishing urls.  It then uses a real browser to go to
 // these urls, and sends "goback" or "proceed" commands and verifies
 // they work.
 
 #include "base/bind.h"
@@ skipping 326 matching lines @@
  public:
   enum Visibility {
     VISIBILITY_ERROR = -1,
     HIDDEN = 0,
     VISIBLE = 1
   };
 
   SafeBrowsingBlockingPageBrowserTest() {
   }
 
-  virtual void SetUp() override {
+  void SetUp() override {
     SafeBrowsingService::RegisterFactory(&factory_);
     SafeBrowsingBlockingPage::RegisterFactory(&blocking_page_factory_);
     MalwareDetails::RegisterFactory(&details_factory_);
     InProcessBrowserTest::SetUp();
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     InProcessBrowserTest::TearDown();
     SafeBrowsingBlockingPage::RegisterFactory(NULL);
     SafeBrowsingService::RegisterFactory(NULL);
     MalwareDetails::RegisterFactory(NULL);
   }
 
   void SetUpInProcessBrowserTestFixture() override {
     ASSERT_TRUE(test_server()->Start());
   }
 
@@ skipping 472 matching lines @@
 IN_PROC_BROWSER_TEST_F(SafeBrowsingBlockingPageBrowserTest, PhishingLearnMore) {
   SetupWarningAndNavigate(SB_THREAT_TYPE_URL_PHISHING);
   EXPECT_TRUE(ClickAndWaitForDetach("help-link"));
   AssertNoInterstitial(false);  // Assert the interstitial is gone
 
   // We are in the help page.
   EXPECT_EQ(
       "/transparencyreport/safebrowsing/",
        browser()->tab_strip_model()->GetActiveWebContents()->GetURL().path());
 }