Update {virtual,override,final} to follow C++11 style in net.

net/android/network_change_notifier_android.h

 // Copyright (c) 2012 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 NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_
 #define NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_
 
 #include "base/android/jni_android.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
@@ skipping 24 matching lines @@
 // NetworkChangeNotifierAndroid ('Notifier') - Receives event notifications from
 //   the Delegate. Processes and forwards these events to the
 //   NetworkChangeNotifier observers on their threads. May live on any thread
 //   and be called by any thread.
 //
 // For more details, see the implementation file.
 class NET_EXPORT_PRIVATE NetworkChangeNotifierAndroid
     : public NetworkChangeNotifier,
       public NetworkChangeNotifierDelegateAndroid::Observer {
  public:
-  virtual ~NetworkChangeNotifierAndroid();
+  ~NetworkChangeNotifierAndroid() override;
 
   // NetworkChangeNotifier:
-  virtual ConnectionType GetCurrentConnectionType() const override;
+  ConnectionType GetCurrentConnectionType() const override;
   // Requires ACCESS_WIFI_STATE permission in order to provide precise WiFi link
   // speed.
-  virtual double GetCurrentMaxBandwidth() const override;
+  double GetCurrentMaxBandwidth() const override;
 
   // NetworkChangeNotifierDelegateAndroid::Observer:
-  virtual void OnConnectionTypeChanged() override;
-  virtual void OnMaxBandwidthChanged(double max_bandwidth_mbps) override;
+  void OnConnectionTypeChanged() override;
+  void OnMaxBandwidthChanged(double max_bandwidth_mbps) override;
 
   static bool Register(JNIEnv* env);
 
   // Promote GetMaxBandwidthForConnectionSubtype to public for the Android
   // delegate class.
   using NetworkChangeNotifier::GetMaxBandwidthForConnectionSubtype;
 
  private:
   friend class NetworkChangeNotifierAndroidTest;
   friend class NetworkChangeNotifierFactoryAndroid;
 
   class DnsConfigServiceThread;
 
   explicit NetworkChangeNotifierAndroid(
       NetworkChangeNotifierDelegateAndroid* delegate);
 
   static NetworkChangeCalculatorParams NetworkChangeCalculatorParamsAndroid();
 
   NetworkChangeNotifierDelegateAndroid* const delegate_;
   scoped_ptr<DnsConfigServiceThread> dns_config_service_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierAndroid);
 };
 
 }  // namespace net
 
 #endif  // NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_