Update Token Binding code to the latest drafts

net/spdy/spdy_http_stream.h

Index: net/spdy/spdy_http_stream.h
diff --git a/net/spdy/spdy_http_stream.h b/net/spdy/spdy_http_stream.h
index 0af46b498675889736c7e3eee80c4be2ed494097..b85a88bfa6a3f89ac9e05ee12f6a30adb426732d 100644
--- a/net/spdy/spdy_http_stream.h
+++ b/net/spdy/spdy_http_stream.h
@@ -80,8 +80,9 @@ class NET_EXPORT_PRIVATE SpdyHttpStream : public SpdyStream::Delegate,
   void GetSSLInfo(SSLInfo* ssl_info) override;
   void GetSSLCertRequestInfo(SSLCertRequestInfo* cert_request_info) override;
   bool GetRemoteEndpoint(IPEndPoint* endpoint) override;
-  Error GetSignedEKMForTokenBinding(crypto::ECPrivateKey* key,
-                                    std::vector<uint8_t>* out) override;
+  Error GetTokenBindingSignature(crypto::ECPrivateKey* key,
+                                 TokenBindingType tb_type,
+                                 std::vector<uint8_t>* out) override;
   void Drain(HttpNetworkSession* session) override;
   void PopulateNetErrorDetails(NetErrorDetails* details) override;
   void SetPriority(RequestPriority priority) override;