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

chrome/browser/extensions/api/history/history_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/base_switches.h"
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "net/dns/mock_host_resolver.h"
 
 namespace extensions {
 
 class HistoryApiTest : public ExtensionApiTest {
  public:
-  virtual void SetUpInProcessBrowserTestFixture() override {
+  void SetUpInProcessBrowserTestFixture() override {
     ExtensionApiTest::SetUpInProcessBrowserTestFixture();
 
     host_resolver()->AddRule("www.a.com", "127.0.0.1");
     host_resolver()->AddRule("www.b.com", "127.0.0.1");
   }
 };
 
 // Full text search indexing sometimes exceeds a timeout. (http://crbug/119505)
 IN_PROC_BROWSER_TEST_F(HistoryApiTest, DISABLED_MiscSearch) {
   ASSERT_TRUE(StartEmbeddedTestServer());
@@ skipping 39 matching lines @@
 #define MAYBE_SearchAfterAdd SearchAfterAdd
 #endif
 
 IN_PROC_BROWSER_TEST_F(HistoryApiTest, MAYBE_SearchAfterAdd) {
   ASSERT_TRUE(StartEmbeddedTestServer());
   ASSERT_TRUE(RunExtensionSubtest("history", "search_after_add.html"))
       << message_;
 }
 
 }  // namespace extensions