Update to IETF draft 24

gfe-relnote: update draft number, protected by disabled v99 flag
PiperOrigin-RevId: 278697164
Change-Id: I0c3e446bc57ef1a514850552fa6c5cfe201f28f7

quic/core/crypto/crypto_utils.cc

diff --git a/quic/core/crypto/crypto_utils.cc b/quic/core/crypto/crypto_utils.cc
index 232c258..1c249b9 100644
--- a/quic/core/crypto/crypto_utils.cc
+++ b/quic/core/crypto/crypto_utils.cc
@@ -109,8 +109,8 @@
 
 namespace {
 
-static_assert(kQuicIetfDraftVersion == 23, "Salts do not match draft version");
-// Salt from https://tools.ietf.org/html/draft-ietf-quic-tls-23#section-5.2
+static_assert(kQuicIetfDraftVersion == 24, "Salts do not match draft version");
+// Salt from https://tools.ietf.org/html/draft-ietf-quic-tls-24#section-5.2
 const uint8_t kDraft23InitialSalt[] = {0xc3, 0xee, 0xf7, 0x12, 0xc7, 0x2e, 0xbb,
                                        0x5a, 0x11, 0xa7, 0xd2, 0x43, 0x2b, 0xb4,
                                        0x63, 0x65, 0xbe, 0xf9, 0xf5, 0x02};

quic/core/quic_versions.h

diff --git a/quic/core/quic_versions.h b/quic/core/quic_versions.h
index 7fd1d01..0a4022e 100644
--- a/quic/core/quic_versions.h
+++ b/quic/core/quic_versions.h
@@ -119,7 +119,7 @@
 };
 
 // IETF draft version most closely approximated by TLS + v99.
-static const int kQuicIetfDraftVersion = 23;
+static const int kQuicIetfDraftVersion = 24;
 
 // The crypto handshake protocols that can be used with QUIC.
 enum HandshakeProtocol {

quic/core/quic_versions_test.cc

diff --git a/quic/core/quic_versions_test.cc b/quic/core/quic_versions_test.cc
index 92e3309..02aa15f 100644
--- a/quic/core/quic_versions_test.cc
+++ b/quic/core/quic_versions_test.cc
@@ -464,7 +464,9 @@
   EXPECT_EQ("h3-T049", AlpnForVersion(parsed_version_t049));
   EXPECT_EQ("h3-Q050", AlpnForVersion(parsed_version_q050));
   EXPECT_EQ("h3-T050", AlpnForVersion(parsed_version_t050));
-  EXPECT_EQ("h3-23", AlpnForVersion(parsed_version_t099));
+  EXPECT_EQ("h3-24", AlpnForVersion(parsed_version_t099));
+  static_assert(kQuicIetfDraftVersion == 24,
+                "ALPN does not match draft version");
 }
 
 TEST_F(QuicVersionsTest, QuicEnableVersion) {