Set Token-Binding HTTP header

net/socket/ssl_client_socket_openssl.h

Index: net/socket/ssl_client_socket_openssl.h
diff --git a/net/socket/ssl_client_socket_openssl.h b/net/socket/ssl_client_socket_openssl.h
index 6bee84cb799987efcb94ff6c730a9a6743b3b04a..95cab9bebe623f920779844b2e48857f2b6143f3 100644
--- a/net/socket/ssl_client_socket_openssl.h
+++ b/net/socket/ssl_client_socket_openssl.h
@@ -58,6 +58,7 @@ class SSLClientSocketOpenSSL : public SSLClientSocket {
   void GetSSLCertRequestInfo(SSLCertRequestInfo* cert_request_info) override;
   NextProtoStatus GetNextProto(std::string* proto) const override;
   ChannelIDService* GetChannelIDService() const override;
+  std::string GetProvidedTokenBinding() override;
   SSLFailureState GetSSLFailureState() const override;
 
   // SSLSocket implementation.
@@ -269,6 +270,7 @@ class SSLClientSocketOpenSSL : public SSLClientSocket {
 
   void OnPrivateKeySignComplete(Error error,
                                 const std::vector<uint8_t>& signature);
+  int BuildProvidedTokenBinding();
 
   bool transport_send_busy_;
   bool transport_recv_busy_;
@@ -342,6 +344,7 @@ class SSLClientSocketOpenSSL : public SSLClientSocket {
   // The service for retrieving Channel ID keys.  May be NULL.
   ChannelIDService* channel_id_service_;
   TokenBindingExtension token_binding_extension_;
+  std::string provided_token_binding_;
 
   // OpenSSL stuff
   SSL* ssl_;