Refactoring output of ProofSource::GetProof (no functional changes).

net/quic/core/crypto/quic_crypto_proof.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NET_QUIC_CORE_CRYPTO_QUIC_CRYPTO_PROOF_H_
+#define NET_QUIC_CORE_CRYPTO_QUIC_CRYPTO_PROOF_H_
+
+#include <string>
+
+namespace net {
+
+// Contains the crypto-related data provided by ProofSource
+struct QuicCryptoProof {
+  // Signature generated by ProofSource
+  std::string signature;
+  // SCTList (RFC6962) to be sent to the client, if it supports receiving it.
+  std::string leaf_cert_scts;
+};
+
+}  // namespace net
+
+#endif  // NET_QUIC_CORE_CRYPTO_QUIC_CRYPTO_PROOF_H_