Standardize usage of virtual/override/final in components/

components/variations/variations_http_header_provider.h

 // 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.
 
 #ifndef COMPONENTS_VARIATIONS_VARIATIONS_HTTP_HEADER_PROVIDER_H_
 #define COMPONENTS_VARIATIONS_VARIATIONS_HTTP_HEADER_PROVIDER_H_
 
 #include <set>
 #include <string>
 
@@ skipping 46 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(VariationsHttpHeaderProviderTest,
                            ShouldAppendHeaders);
   FRIEND_TEST_ALL_PREFIXES(VariationsHttpHeaderProviderTest,
                            SetDefaultVariationIds_Valid);
   FRIEND_TEST_ALL_PREFIXES(VariationsHttpHeaderProviderTest,
                            SetDefaultVariationIds_Invalid);
   FRIEND_TEST_ALL_PREFIXES(VariationsHttpHeaderProviderTest,
                            OnFieldTrialGroupFinalized);
 
   VariationsHttpHeaderProvider();
-  virtual ~VariationsHttpHeaderProvider();
+  ~VariationsHttpHeaderProvider() override;
 
   // base::FieldTrialList::Observer implementation.
   // This will add the variation ID associated with |trial_name| and
   // |group_name| to the variation ID cache.
-  virtual void OnFieldTrialGroupFinalized(
-      const std::string& trial_name,
-      const std::string& group_name) override;
+  void OnFieldTrialGroupFinalized(const std::string& trial_name,
+                                  const std::string& group_name) override;
 
   // Prepares the variation IDs cache with initial values if not already done.
   // This method also registers the caller with the FieldTrialList to receive
   // new variation IDs.
   void InitVariationIDsCacheIfNeeded();
 
   // Takes whatever is currently in |variation_ids_set_| and recreates
   // |variation_ids_header_| with it.  Assumes the the |lock_| is currently
   // held.
   void UpdateVariationIDsHeaderValue();
@@ skipping 19 matching lines @@
   std::set<VariationID> default_trigger_id_set_;
 
   std::string variation_ids_header_;
 
   DISALLOW_COPY_AND_ASSIGN(VariationsHttpHeaderProvider);
 };
 
 }  // namespace variations
 
 #endif  // COMPONENTS_VARIATIONS_VARIATIONS_HTTP_HEADER_PROVIDER_H_