Standardize usage of virtual/override/final in components/

components/metrics/net/network_metrics_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_METRICS_NET_NETWORK_METRICS_PROVIDER_H_
 #define COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "components/metrics/metrics_provider.h"
 #include "components/metrics/net/wifi_access_point_info_provider.h"
 #include "components/metrics/proto/system_profile.pb.h"
 #include "net/base/net_util.h"
 #include "net/base/network_change_notifier.h"
 
 // Registers as observer with net::NetworkChangeNotifier and keeps track of
 // the network environment.
 class NetworkMetricsProvider
     : public metrics::MetricsProvider,
       public net::NetworkChangeNotifier::ConnectionTypeObserver {
  public:
   // Creates a NetworkMetricsProvider, where |io_task_runner| is used to post
   // network info collection tasks.
   explicit NetworkMetricsProvider(base::TaskRunner* io_task_runner);
-  virtual ~NetworkMetricsProvider();
+  ~NetworkMetricsProvider() override;
 
  private:
   // metrics::MetricsProvider:
-  virtual void OnDidCreateMetricsLog() override;
-  virtual void ProvideSystemProfileMetrics(
+  void OnDidCreateMetricsLog() override;
+  void ProvideSystemProfileMetrics(
       metrics::SystemProfileProto* system_profile) override;
 
   // ConnectionTypeObserver:
-  virtual void OnConnectionTypeChanged(
+  void OnConnectionTypeChanged(
       net::NetworkChangeNotifier::ConnectionType type) override;
 
   metrics::SystemProfileProto::Network::ConnectionType
   GetConnectionType() const;
   metrics::SystemProfileProto::Network::WifiPHYLayerProtocol
   GetWifiPHYLayerProtocol() const;
 
   // Posts a call to net::GetWifiPHYLayerProtocol on the blocking pool.
   void ProbeWifiPHYLayerProtocol();
   // Callback from the blocking pool with the result of
@@ skipping 22 matching lines @@
 
   // Helper object for retrieving connected wifi access point information.
   scoped_ptr<WifiAccessPointInfoProvider> wifi_access_point_info_provider_;
 
   base::WeakPtrFactory<NetworkMetricsProvider> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkMetricsProvider);
 };
 
 #endif  // COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_