relnote: Create Quic version 28. The receiver refuses to create a

net/quic/quic_protocol.cc

Index: net/quic/quic_protocol.cc
diff --git a/net/quic/quic_protocol.cc b/net/quic/quic_protocol.cc
index 5625d6c9500b513270410bdacbdab36a3fbd587a..6f8891917e21e6e053b684f28c0c87f261bf865e 100644
--- a/net/quic/quic_protocol.cc
+++ b/net/quic/quic_protocol.cc
@@ -138,6 +138,8 @@ QuicTag QuicVersionToQuicTag(const QuicVersion version) {
       return MakeQuicTag('Q', '0', '2', '6');
     case QUIC_VERSION_27:
       return MakeQuicTag('Q', '0', '2', '7');
+    case QUIC_VERSION_28:
+      return MakeQuicTag('Q', '0', '2', '8');
     default:
       // This shold be an ERROR because we should never attempt to convert an
       // invalid QuicVersion to be written to the wire.
@@ -168,6 +170,7 @@ string QuicVersionToString(const QuicVersion version) {
     RETURN_STRING_LITERAL(QUIC_VERSION_25);
     RETURN_STRING_LITERAL(QUIC_VERSION_26);
     RETURN_STRING_LITERAL(QUIC_VERSION_27);
+    RETURN_STRING_LITERAL(QUIC_VERSION_28);
     default:
       return "QUIC_VERSION_UNSUPPORTED";
   }