Standardize usage of virtual/override/final in net/

net/quic/crypto/crypto_server_test.cc

Index: net/quic/crypto/crypto_server_test.cc
diff --git a/net/quic/crypto/crypto_server_test.cc b/net/quic/crypto/crypto_server_test.cc
index 1f3380aea5f57faae76f45a6cc72d7f6f6f08a1f..1905109b87c49caa82603ded91cbf857ff4b5c21 100644
--- a/net/quic/crypto/crypto_server_test.cc
+++ b/net/quic/crypto/crypto_server_test.cc
@@ -155,8 +155,8 @@ class CryptoServerTest : public ::testing::TestWithParam<TestParams> {
       *called_ = false;
     }
 
-    virtual void RunImpl(const CryptoHandshakeMessage& client_hello,
-                         const Result& result) override {
+    void RunImpl(const CryptoHandshakeMessage& client_hello,
+                 const Result& result) override {
       {
         // Ensure that the strike register client lock is not held.
         QuicCryptoServerConfigPeer peer(&test_->config_);