Change CryptoHandshakeMessage::GetTaglist to tag a QuicTagVector*

net/quic/core/crypto/crypto_utils.cc

Index: net/quic/core/crypto/crypto_utils.cc
diff --git a/net/quic/core/crypto/crypto_utils.cc b/net/quic/core/crypto/crypto_utils.cc
index 0e005bff26bfb7cfd33769a6c9a3317390f73b83..382acc720e4142b42d7d135565de1db7b8f1f274 100644
--- a/net/quic/core/crypto/crypto_utils.cc
+++ b/net/quic/core/crypto/crypto_utils.cc
@@ -188,17 +188,14 @@ QuicErrorCode CryptoUtils::ValidateServerHello(
     return QUIC_INVALID_CRYPTO_MESSAGE_TYPE;
   }
 
-  const QuicTag* supported_version_tags;
-  size_t num_supported_versions;
-
-  if (server_hello.GetTaglist(kVER, &supported_version_tags,
-                              &num_supported_versions) != QUIC_NO_ERROR) {
+  QuicTagVector supported_version_tags;
+  if (server_hello.GetTaglist(kVER, &supported_version_tags) != QUIC_NO_ERROR) {
     *error_details = "server hello missing version list";
     return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER;
   }
   if (!negotiated_versions.empty()) {
-    bool mismatch = num_supported_versions != negotiated_versions.size();
-    for (size_t i = 0; i < num_supported_versions && !mismatch; ++i) {
+    bool mismatch = supported_version_tags.size() != negotiated_versions.size();
+    for (size_t i = 0; i < supported_version_tags.size() && !mismatch; ++i) {
       mismatch = QuicTagToQuicVersion(supported_version_tags[i]) !=
                  negotiated_versions[i];
     }