Use the CHLO packet size, not message size when determining how large a REJ can be. Protected by --…

net/quic/core/quic_crypto_stream.h

Index: net/quic/core/quic_crypto_stream.h
diff --git a/net/quic/core/quic_crypto_stream.h b/net/quic/core/quic_crypto_stream.h
index e048cb06a9b70d09dfb1ccc73ab03b80cdc7191e..225324f50214d21d77c0573c916221061e142db2 100644
--- a/net/quic/core/quic_crypto_stream.h
+++ b/net/quic/core/quic_crypto_stream.h
@@ -35,6 +35,10 @@ class NET_EXPORT_PRIVATE QuicCryptoStream
  public:
   explicit QuicCryptoStream(QuicSession* session);
 
+  // Returns the per-packet framing overhead associated with sending a
+  // handshake message for |version|.
+  static QuicByteCount CryptoMessageFramingOverhead(QuicVersion version);
+
   // CryptoFramerVisitorInterface implementation
   void OnError(CryptoFramer* framer) override;
   void OnHandshakeMessage(const CryptoHandshakeMessage& message) override;