Standardize usage of virtual/override/final in net/

net/quic/quic_default_packet_writer.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_QUIC_QUIC_DEFAULT_PACKET_WRITER_H_
 #define NET_QUIC_QUIC_DEFAULT_PACKET_WRITER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "net/base/ip_endpoint.h"
 #include "net/quic/quic_connection.h"
 #include "net/quic/quic_packet_writer.h"
 #include "net/quic/quic_protocol.h"
 #include "net/udp/datagram_client_socket.h"
 
 namespace net {
 
 struct WriteResult;
 
 // Chrome specific packet writer which uses a DatagramClientSocket for writing
 // data.
 class NET_EXPORT_PRIVATE QuicDefaultPacketWriter : public QuicPacketWriter {
  public:
   QuicDefaultPacketWriter();
   explicit QuicDefaultPacketWriter(DatagramClientSocket* socket);
-  virtual ~QuicDefaultPacketWriter();
+  ~QuicDefaultPacketWriter() override;
 
   // QuicPacketWriter
-  virtual WriteResult WritePacket(const char* buffer,
-                                  size_t buf_len,
-                                  const IPAddressNumber& self_address,
-                                  const IPEndPoint& peer_address) override;
-  virtual bool IsWriteBlockedDataBuffered() const override;
-  virtual bool IsWriteBlocked() const override;
-  virtual void SetWritable() override;
+  WriteResult WritePacket(const char* buffer,
+                          size_t buf_len,
+                          const IPAddressNumber& self_address,
+                          const IPEndPoint& peer_address) override;
+  bool IsWriteBlockedDataBuffered() const override;
+  bool IsWriteBlocked() const override;
+  void SetWritable() override;
 
   void OnWriteComplete(int rv);
   void SetConnection(QuicConnection* connection) {
     connection_ = connection;
   }
 
  protected:
   void set_write_blocked(bool is_blocked) {
     write_blocked_ = is_blocked;
   }
 
  private:
   DatagramClientSocket* socket_;
   QuicConnection* connection_;
 
   // Whether a write is currently in flight.
   bool write_blocked_;
 
   base::WeakPtrFactory<QuicDefaultPacketWriter> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicDefaultPacketWriter);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_DEFAULT_PACKET_WRITER_H_