Update Token Binding code to the latest drafts

net/spdy/spdy_http_stream.cc

Index: net/spdy/spdy_http_stream.cc
diff --git a/net/spdy/spdy_http_stream.cc b/net/spdy/spdy_http_stream.cc
index 4b451465722319a9efb2fba42a0b5ce8760df702..0fdbcdf460bca2d0c06613e3d69949fb90cc5ad5 100644
--- a/net/spdy/spdy_http_stream.cc
+++ b/net/spdy/spdy_http_stream.cc
@@ -591,9 +591,10 @@ bool SpdyHttpStream::GetRemoteEndpoint(IPEndPoint* endpoint) {
   return spdy_session_->GetPeerAddress(endpoint) == OK;
 }
 
-Error SpdyHttpStream::GetSignedEKMForTokenBinding(crypto::ECPrivateKey* key,
-                                                  std::vector<uint8_t>* out) {
-  return spdy_session_->GetSignedEKMForTokenBinding(key, out);
+Error SpdyHttpStream::GetTokenBindingSignature(crypto::ECPrivateKey* key,
+                                               TokenBindingType tb_type,
+                                               std::vector<uint8_t>* out) {
+  return spdy_session_->GetTokenBindingSignature(key, tb_type, out);
 }
 
 void SpdyHttpStream::Drain(HttpNetworkSession* session) {