gfe-relnote: In QUIC, change string to std::string for detailed_error.

PiperOrigin-RevId: 248137545
Change-Id: I0191ad6d6129abffabdf320b1da4b1f8cd92dd80

quic/core/quic_dispatcher.cc

diff --git a/quic/core/quic_dispatcher.cc b/quic/core/quic_dispatcher.cc
index ea2450d..831aac5 100644
--- a/quic/core/quic_dispatcher.cc
+++ b/quic/core/quic_dispatcher.cc
@@ -345,7 +345,7 @@
   QUIC_RESTART_FLAG_COUNT(quic_no_framer_object_in_dispatcher);
   QuicPacketHeader header;
   uint8_t destination_connection_id_length;
-  string detailed_error;
+  std::string detailed_error;
   const QuicErrorCode error = QuicFramer::ProcessPacketDispatcher(
       packet, expected_connection_id_length_, &header.form,
       &header.version_flag, &last_version_label_,