Standardize usage of virtual/override/final specifiers.

components/data_reduction_proxy/core/browser/data_reduction_proxy_prefs_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 "components/data_reduction_proxy/core/browser/data_reduction_proxy_prefs.h"
 
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
 #include "base/prefs/testing_pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_pref_names.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace data_reduction_proxy {
 
 class DataReductionProxyPrefsTest : public testing::Test {
  public:
-  virtual void SetUp() override {
+  void SetUp() override {
     RegisterPrefs(local_state_prefs_.registry());
     PrefRegistrySimple* profile_registry = profile_prefs_.registry();
     RegisterPrefs(profile_registry);
     profile_registry->RegisterBooleanPref(
         prefs::kStatisticsPrefsMigrated, false);
   }
 
   PrefService* local_state_prefs() {
     return &local_state_prefs_;
   }
@@ skipping 176 matching lines @@
   EXPECT_TRUE(profile_prefs()->GetBoolean(prefs::kStatisticsPrefsMigrated));
 
   // Migration should only happen once.
   local_state_prefs()->SetInt64(prefs::kHttpReceivedContentLength, 456L);
   data_reduction_proxy::MigrateStatisticsPrefs(local_state_prefs(),
                                                profile_prefs());
   EXPECT_EQ(123L, profile_prefs()->GetInt64(prefs::kHttpReceivedContentLength));
 }
 
 }  // namespace data_reduction_proxy