Standardize usage of virtual/override/final specifiers.

net/tools/quic/test_tools/packet_dropping_test_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_TOOLS_QUIC_TEST_TOOLS_PACKET_DROPPING_TEST_WRITER_H_
 #define NET_TOOLS_QUIC_TEST_TOOLS_PACKET_DROPPING_TEST_WRITER_H_
 
 #include <list>
 
 #include "base/basictypes.h"
@@ skipping 18 matching lines @@
  public:
   class Delegate {
    public:
     virtual ~Delegate() {}
     virtual void OnPacketSent(WriteResult result) = 0;
     virtual void OnCanWrite() = 0;
   };
 
   PacketDroppingTestWriter();
 
-  virtual ~PacketDroppingTestWriter();
+  ~PacketDroppingTestWriter() override;
 
   // Must be called before blocking, reordering or delaying (loss is OK). May be
   // called after connecting if the helper is not available before.
   // |on_can_write| will be triggered when fake-unblocking; ownership will be
   // assumed.
   void Initialize(QuicEpollConnectionHelper* helper, Delegate* on_can_write);
 
   // QuicPacketWriter methods:
-  virtual WriteResult WritePacket(
-      const char* buffer,
-      size_t buf_len,
-      const IPAddressNumber& self_address,
-      const IPEndPoint& peer_address) override;
+  WriteResult WritePacket(const char* buffer,
+                          size_t buf_len,
+                          const IPAddressNumber& self_address,
+                          const IPEndPoint& peer_address) override;
 
-  virtual bool IsWriteBlocked() const override;
+  bool IsWriteBlocked() const override;
 
-  virtual void SetWritable() override;
+  void SetWritable() override;
 
   // Writes out any packet which should have been sent by now
   // to the contained writer and returns the time
   // for the next delayed packet to be written.
   QuicTime ReleaseOldPackets();
 
   void OnCanWrite();
 
   // The percent of time a packet is simulated as being lost.
   void set_fake_packet_loss_percentage(int32 fake_packet_loss_percentage) {
@@ skipping 83 matching lines @@
   QuicByteCount buffer_size_;
 
   DISALLOW_COPY_AND_ASSIGN(PacketDroppingTestWriter);
 };
 
 }  // namespace test
 }  // namespace tools
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_TEST_TOOLS_PACKET_DROPPING_TEST_WRITER_H_