Standardize usage of virtual/override/final specifiers.

components/variations/variations_seed_simulator_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/variations/variations_seed_simulator.h"
 
 #include <map>
 
 #include "base/strings/stringprintf.h"
 #include "components/variations/processed_study.h"
@@ skipping 67 matching lines @@
   return param;
 }
 
 }  // namespace
 
 class VariationsSeedSimulatorTest : public ::testing::Test {
  public:
   VariationsSeedSimulatorTest() : field_trial_list_(NULL) {
   }
 
-  virtual ~VariationsSeedSimulatorTest() {
+  ~VariationsSeedSimulatorTest() override {
     // Ensure that the maps are cleared between tests, since they are stored as
     // process singletons.
     testing::ClearAllVariationIDs();
     testing::ClearAllVariationParams();
   }
 
   // Uses a VariationsSeedSimulator to simulate the differences between
   // |studies| and the current field trial state.
   VariationsSeedSimulator::Result SimulateDifferences(
       const std::vector<ProcessedStudy>& studies) {
@@ skipping 273 matching lines @@
   EXPECT_EQ("1 0 0", SimulateStudyDifferences(&study));
   experiment->set_type(Study_Experiment_Type_IGNORE_CHANGE);
   EXPECT_EQ("0 0 0", SimulateStudyDifferences(&study));
   experiment->set_type(Study_Experiment_Type_KILL_BEST_EFFORT);
   EXPECT_EQ("0 1 0", SimulateStudyDifferences(&study));
   experiment->set_type(Study_Experiment_Type_KILL_CRITICAL);
   EXPECT_EQ("0 0 1", SimulateStudyDifferences(&study));
 }
 
 }  // namespace variations