Standardize usage of virtual/override/final in components/

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"
 #include "components/variations/proto/study.pb.h"
 #include "components/variations/variations_associated_data.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace variations {
 
 namespace {
 
 // An implementation of EntropyProvider that always returns a specific entropy
 // value, regardless of field trial.
 class TestEntropyProvider : public base::FieldTrial::EntropyProvider {
  public:
   explicit TestEntropyProvider(double entropy_value)
       : entropy_value_(entropy_value) {}
-  virtual ~TestEntropyProvider() {}
+  ~TestEntropyProvider() override {}
 
   // base::FieldTrial::EntropyProvider implementation:
-  virtual double GetEntropyForTrial(const std::string& trial_name,
-                                    uint32 randomization_seed) const override {
+  double GetEntropyForTrial(const std::string& trial_name,
+                            uint32 randomization_seed) const override {
     return entropy_value_;
   }
 
  private:
   const double entropy_value_;
 
   DISALLOW_COPY_AND_ASSIGN(TestEntropyProvider);
 };
 
 // Creates and activates a single-group field trial with name |trial_name| and
@@ skipping 332 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