Set Token-Binding HTTP header

net/spdy/spdy_session.h

Index: net/spdy/spdy_session.h
diff --git a/net/spdy/spdy_session.h b/net/spdy/spdy_session.h
index b162875cda4aa19fcec8dd964b800afddd2099de..90c8584e304af938d8049d8a2166e23fb3a16aaa 100644
--- a/net/spdy/spdy_session.h
+++ b/net/spdy/spdy_session.h
@@ -364,6 +364,11 @@ class NET_EXPORT SpdySession : public BufferedSpdyFramerVisitorInterface,
                   bool* was_npn_negotiated,
                   NextProto* protocol_negotiated);
 
+  // Signs the EKM value for Token Binding from the TLS layer using |*key| and
+  // puts the result in |*out|. Returns OK or ERR_FAILED.
+  int GetSignedEKMForTokenBinding(crypto::ECPrivateKey* key,
+                                  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,