Standardize usage of virtual/override/final in net/

net/quic/test_tools/mock_crypto_client_stream_factory.h

 // Copyright (c) 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_TEST_TOOLS_MOCK_CRYPTO_CLIENT_STREAM_FACTORY_H_
 #define NET_QUIC_TEST_TOOLS_MOCK_CRYPTO_CLIENT_STREAM_FACTORY_H_
 
 #include <string>
 
 #include "net/quic/quic_crypto_client_stream.h"
 #include "net/quic/quic_crypto_client_stream_factory.h"
 #include "net/quic/test_tools/mock_crypto_client_stream.h"
 
 namespace net {
 
 class QuicServerId;
 
 class MockCryptoClientStreamFactory : public QuicCryptoClientStreamFactory  {
  public:
   MockCryptoClientStreamFactory();
-  virtual ~MockCryptoClientStreamFactory() {}
+  ~MockCryptoClientStreamFactory() override {}
 
-  virtual QuicCryptoClientStream* CreateQuicCryptoClientStream(
+  QuicCryptoClientStream* CreateQuicCryptoClientStream(
       const QuicServerId& server_id,
       QuicClientSession* session,
       QuicCryptoClientConfig* crypto_config) override;
 
   void set_handshake_mode(
       MockCryptoClientStream::HandshakeMode handshake_mode) {
     handshake_mode_ = handshake_mode;
   }
 
   void set_proof_verify_details(
       const ProofVerifyDetails* proof_verify_details) {
     proof_verify_details_ = proof_verify_details;
   }
 
   MockCryptoClientStream* last_stream() const {
     return last_stream_;
   }
 
  private:
   MockCryptoClientStream::HandshakeMode handshake_mode_;
   MockCryptoClientStream* last_stream_;
   const ProofVerifyDetails* proof_verify_details_;
 
   DISALLOW_COPY_AND_ASSIGN(MockCryptoClientStreamFactory);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_TEST_TOOLS_MOCK_CRYPTO_CLIENT_STREAM_FACTORY_H_