Standardize usage of virtual/override/final specifiers.

net/base/network_change_notifier_linux.cc

 // 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.
 
 #include "net/base/network_change_notifier_linux.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/threading/thread.h"
 #include "net/base/address_tracker_linux.h"
 #include "net/dns/dns_config_service.h"
 
 namespace net {
 
 class NetworkChangeNotifierLinux::Thread : public base::Thread {
  public:
   Thread();
-  virtual ~Thread();
+  ~Thread() override;
 
   // Plumbing for NetworkChangeNotifier::GetCurrentConnectionType.
   // Safe to call from any thread.
   NetworkChangeNotifier::ConnectionType GetCurrentConnectionType() {
     return address_tracker_.GetCurrentConnectionType();
   }
 
   const internal::AddressTrackerLinux* address_tracker() const {
     return &address_tracker_;
   }
 
  protected:
   // base::Thread
-  virtual void Init() override;
-  virtual void CleanUp() override;
+  void Init() override;
+  void CleanUp() override;
 
  private:
   scoped_ptr<DnsConfigService> dns_config_service_;
   // Used to detect online/offline state and IP address changes.
   internal::AddressTrackerLinux address_tracker_;
 
   DISALLOW_COPY_AND_ASSIGN(Thread);
 };
 
 NetworkChangeNotifierLinux::Thread::Thread()
@@ skipping 59 matching lines @@
 NetworkChangeNotifierLinux::GetCurrentConnectionType() const {
   return notifier_thread_->GetCurrentConnectionType();
 }
 
 const internal::AddressTrackerLinux*
 NetworkChangeNotifierLinux::GetAddressTrackerInternal() const {
   return notifier_thread_->address_tracker();
 }
 
 }  // namespace net