Use override instead of virtual..override in ./net/quic/... and

net/quic/quic_packet_creator_test.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/quic/quic_packet_creator.h"
 
 #include "base/stl_util.h"
 #include "net/quic/crypto/null_encrypter.h"
 #include "net/quic/crypto/quic_decrypter.h"
 #include "net/quic/crypto/quic_encrypter.h"
@@ skipping 69 matching lines @@
         sequence_number_(0),
         connection_id_(2),
         data_("foo"),
         creator_(connection_id_, &client_framer_, &mock_random_) {
     creator_.set_connection_id_length(GetParam().connection_id_length);
     client_framer_.set_visitor(&framer_visitor_);
     client_framer_.set_received_entropy_calculator(&entropy_calculator_);
     server_framer_.set_visitor(&framer_visitor_);
   }
 
-  virtual ~QuicPacketCreatorTest() override {
-  }
+  ~QuicPacketCreatorTest() override {}
 
   void ProcessPacket(QuicPacket* packet) {
     scoped_ptr<QuicEncryptedPacket> encrypted(
         server_framer_.EncryptPacket(ENCRYPTION_NONE, sequence_number_,
                                      *packet));
     server_framer_.ProcessPacket(*encrypted);
   }
 
   void CheckStreamFrame(const QuicFrame& frame,
                         QuicStreamId stream_id,
@@ skipping 971 matching lines @@
     // After 64 calls, BoolSource will refresh the bucket - make sure it does.
     mock_random_.ChangeValue();
   }
 
   delete frames_[0].stream_frame;
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net