Standardize usage of virtual/override/final specifiers.

chrome/browser/search/hotword_service_unittest.cc

 // Copyright 2014 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/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_service_test_base.h"
@@ skipping 75 matching lines @@
 
   void SetApplicationLocale(Profile* profile, const std::string& new_locale) {
 #if defined(OS_CHROMEOS)
         // On ChromeOS locale is per-profile.
     profile->GetPrefs()->SetString(prefs::kApplicationLocale, new_locale);
 #else
     g_browser_process->SetApplicationLocale(new_locale);
 #endif
   }
 
-  virtual void SetUp() {
+  void SetUp() override {
     extension_id_ = GetParam();
     if (extension_id_ == extension_misc::kHotwordSharedModuleId) {
       base::CommandLine::ForCurrentProcess()->AppendSwitch(
           switches::kEnableExperimentalHotwording);
     }
 
     extensions::ExtensionServiceTestBase::SetUp();
   }
 
   base::FieldTrialList field_trial_list_;
@@ skipping 228 matching lines @@
   EXPECT_EQ("fr_fr",
             profile()->GetPrefs()->GetString(prefs::kHotwordPreviousLanguage));
 
   // If the locale is set back to the last valid one, then an uninstall-install
   // shouldn't be needed.
   SetApplicationLocale(profile(), "fr_fr");
   EXPECT_TRUE(HotwordServiceFactory::IsHotwordAllowed(profile()));
   EXPECT_FALSE(hotword_service->MaybeReinstallHotwordExtension());
   EXPECT_EQ(1, hotword_service->uninstall_count());  // no change
 }