Fix idle timeout negotiation

When clients configure the maximum idle timeout to a different value (as Chrome does), we need to use that maximum instead of the default maximum.

gfe-relnote: fix idle timeout negotiation, protected by disabled TLS flag
PiperOrigin-RevId: 268567456
Change-Id: I4db42fdcb73530a5049cf7b2953128b8b917b10f
diff --git a/quic/core/quic_config.cc b/quic/core/quic_config.cc
index c62a00a..425dbdf 100644
--- a/quic/core/quic_config.cc
+++ b/quic/core/quic_config.cc
@@ -900,9 +900,9 @@
   // An idle timeout of zero indicates it is disabled (in other words, it is
   // set to infinity). When the idle timeout is very high, we set it to our
   // preferred maximum and still probe that often.
-  if (idle_timeout_seconds > kMaximumIdleTimeoutSecs ||
+  if (idle_timeout_seconds > idle_network_timeout_seconds_.GetMax() ||
       idle_timeout_seconds == 0) {
-    idle_timeout_seconds = kMaximumIdleTimeoutSecs;
+    idle_timeout_seconds = idle_network_timeout_seconds_.GetMax();
   }
   QuicErrorCode error = idle_network_timeout_seconds_.ReceiveValue(
       idle_timeout_seconds, hello_type, error_details);
@@ -986,6 +986,7 @@
     }
   }
 
+  *error_details = "";
   return QUIC_NO_ERROR;
 }