Standardize usage of virtual/override/final in net/

net/base/net_log_logger.h

 // Copyright 2013 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_BASE_NET_LOG_LOGGER_H_
 #define NET_BASE_NET_LOG_LOGGER_H_
 
 #include <stdio.h>
 
 #include "base/files/scoped_file.h"
@@ skipping 10 matching lines @@
 // NetLogLogger watches the NetLog event stream, and sends all entries to
 // a file specified on creation.
 //
 // The text file will contain a single JSON object.
 class NET_EXPORT NetLogLogger : public NetLog::ThreadSafeObserver {
  public:
   // Takes ownership of |file| and will write network events to it once logging
   // starts.  |file| must be non-NULL handle and be open for writing.
   // |constants| is a legend for decoding constant values used in the log.
   NetLogLogger(FILE* file, const base::Value& constants);
-  virtual ~NetLogLogger();
+  ~NetLogLogger() override;
 
   // Sets the log level to log at. Must be called before StartObserving.
   void set_log_level(NetLog::LogLevel log_level);
 
   // Starts observing specified NetLog.  Must not already be watching a NetLog.
   // Separate from constructor to enforce thread safety.
   void StartObserving(NetLog* net_log);
 
   // Stops observing net_log().  Must already be watching.
   void StopObserving();
 
   // net::NetLog::ThreadSafeObserver implementation:
-  virtual void OnAddEntry(const NetLog::Entry& entry) override;
+  void OnAddEntry(const NetLog::Entry& entry) override;
 
   // Create a dictionary containing legend for net/ constants.  Caller takes
   // ownership of returned value.
   static base::DictionaryValue* GetConstants();
 
  private:
   base::ScopedFILE file_;
 
   // The LogLevel to log at.
   NetLog::LogLevel log_level_;
 
   // True if OnAddEntry() has been called at least once.
   bool added_events_;
 
   DISALLOW_COPY_AND_ASSIGN(NetLogLogger);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_NET_LOG_LOGGER_H_