Update Token Binding code to the latest drafts

net/quic/chromium/quic_chromium_client_session.h

 // Copyright (c) 2012 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.
 //
 // A client specific QuicSession subclass.  This class owns the underlying
 // QuicConnection and QuicConnectionHelper objects.  The connection stores
 // a non-owning pointer to the helper so this session needs to ensure that
 // the helper outlives the connection.
 
 #ifndef NET_QUIC_QUIC_CHROMIUM_CLIENT_SESSION_H_
@@ skipping 29 matching lines @@
 
 class CertVerifyResult;
 class DatagramClientSocket;
 class QuicCryptoClientStreamFactory;
 class QuicServerInfo;
 class QuicStreamFactory;
 class SSLInfo;
 class TransportSecurityState;
 
 using TokenBindingSignatureMap =
-    base::MRUCache<std::string, std::vector<uint8_t>>;
+    base::MRUCache<std::pair<TokenBindingType, std::string>,
+                   std::vector<uint8_t>>;
 
 namespace test {
 class QuicChromiumClientSessionPeer;
 }  // namespace test
 
 class NET_EXPORT_PRIVATE QuicChromiumClientSession
     : public QuicClientSessionBase,
       public QuicChromiumPacketReader::Visitor,
       public QuicChromiumPacketWriter::Delegate {
  public:
@@ skipping 127 matching lines @@
 
   // QuicChromiumPacketReader::Visitor methods:
   void OnReadError(int result, const DatagramClientSocket* socket) override;
   bool OnPacket(const QuicReceivedPacket& packet,
                 IPEndPoint local_address,
                 IPEndPoint peer_address) override;
 
   // Gets the SSL connection information.
   bool GetSSLInfo(SSLInfo* ssl_info) const;
 
-  // Signs the exported keying material used for Token Binding using key |*key|
-  // and puts the signature in |*out|. Returns a net error code.
+  // Generates the signature used in Token Binding using key |*key| and for a
+  // Token Binding of type |tb_type|, putting the signature in |*out|. Returns a
+  // net error code.
   Error GetTokenBindingSignature(crypto::ECPrivateKey* key,
+                                 TokenBindingType tb_type,
                                  std::vector<uint8_t>* out);
 
   // Performs a crypto handshake with the server.
   int CryptoConnect(bool require_confirmation,
                     const CompletionCallback& callback);
 
   // Resumes a crypto handshake with the server after a timeout.
   int ResumeCryptoConnect(const CompletionCallback& callback);
 
   // Causes the QuicConnectionHelper to start reading from all sockets
@@ skipping 167 matching lines @@
   // the current sockets_.size() == the passed in value.
   bool migration_pending_;  // True while migration is underway.
   base::WeakPtrFactory<QuicChromiumClientSession> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicChromiumClientSession);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CHROMIUM_CLIENT_SESSION_H_