Update Token Binding code to the latest drafts

net/spdy/spdy_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.
 
 #ifndef NET_SPDY_SPDY_SESSION_H_
 #define NET_SPDY_SPDY_SESSION_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 398 matching lines @@
   bool GetSSLInfo(SSLInfo* ssl_info) const;
 
   // Returns true if ALPN was negotiated for the underlying socket.
   // TODO(bnc): Rename to WasAlpnNegotiated().
   bool WasNpnNegotiated() const;
 
   // Returns the protocol negotiated via ALPN for the underlying socket.
   NextProto GetNegotiatedProtocol() const;
 
   // Signs the EKM value for Token Binding from the TLS layer using |*key| and
   // puts the result in |*out|. Returns OK or ERR_FAILED.

[davidben, 2016/09/19 21:24:14]

Did you mean to remove the old comment?

[nharper, 2016/09/19 22:32:23]

Yes. Removed.

-  Error GetSignedEKMForTokenBinding(crypto::ECPrivateKey* key,
-                                    std::vector<uint8_t>* out);
+  // Generates the signature used in Token Binding using |*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);
 
   // Send a WINDOW_UPDATE frame for a stream. Called by a stream
   // whenever receive window size is increased.
   void SendStreamWindowUpdate(SpdyStreamId stream_id,
                               uint32_t delta_window_size);
 
   // Accessors for the session's availability state.
   bool IsAvailable() const { return availability_state_ == STATE_AVAILABLE; }
   bool IsGoingAway() const { return availability_state_ == STATE_GOING_AWAY; }
   bool IsDraining() const { return availability_state_ == STATE_DRAINING; }
@@ skipping 777 matching lines @@
   // Used for posting asynchronous IO tasks.  We use this even though
   // SpdySession is refcounted because we don't need to keep the SpdySession
   // alive if the last reference is within a RunnableMethod.  Just revoke the
   // method.
   base::WeakPtrFactory<SpdySession> weak_factory_;
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_SESSION_H_