Standardize usage of virtual/override/final specifiers.

components/search/search_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/search/search.h"
 
 #include "base/metrics/field_trial.h"
 #include "base/metrics/statistics_recorder.h"
 #include "components/variations/entropy_provider.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chrome {
 
 class EmbeddedSearchFieldTrialTest : public testing::Test {
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     field_trial_list_.reset(new base::FieldTrialList(
         new metrics::SHA1EntropyProvider("42")));
     base::StatisticsRecorder::Initialize();
   }
 
  private:
   scoped_ptr<base::FieldTrialList> field_trial_list_;
 };
 
 TEST_F(EmbeddedSearchFieldTrialTest, GetFieldTrialInfoEmptyAndValid) {
@@ skipping 129 matching lines @@
   EXPECT_TRUE(ShouldHideTopVerbatimMatch());
 }
 
 TEST_F(ShouldHideTopVerbatimTest, DisableByFlag) {
   ASSERT_TRUE(base::FieldTrialList::CreateFieldTrial("EmbeddedSearch",
                                                      "Group1 hide_verbatim:0"));
   EXPECT_FALSE(ShouldHideTopVerbatimMatch());
 }
 
 }  // namespace chrome