Set the server's idle timeout to 2s longer than the negotiated value(30s

net/quic/quic_connection.cc

Index: net/quic/quic_connection.cc
diff --git a/net/quic/quic_connection.cc b/net/quic/quic_connection.cc
index b6aa2c00c538d2c776c32abe828c3e80488d6716..85c589e96b27b11ce7cb79cb741d3945c2eb9c70 100644
--- a/net/quic/quic_connection.cc
+++ b/net/quic/quic_connection.cc
@@ -1856,7 +1856,7 @@ void QuicConnection::SetIdleNetworkTimeout(QuicTime::Delta timeout) {
   // Adjust the idle timeout on client and server to prevent clients from
   // sending requests to servers which have already closed the connection.
   if (is_server_) {
-    timeout = timeout.Add(QuicTime::Delta::FromSeconds(1));
+    timeout = timeout.Add(QuicTime::Delta::FromSeconds(3));
   } else if (timeout > QuicTime::Delta::FromSeconds(1)) {
     timeout = timeout.Subtract(QuicTime::Delta::FromSeconds(1));
   }
@@ -1894,7 +1894,7 @@ void QuicConnection::SetNetworkTimeouts(QuicTime::Delta overall_timeout,
   // Adjust the idle timeout on client and server to prevent clients from
   // sending requests to servers which have already closed the connection.
   if (is_server_) {
-    idle_timeout = idle_timeout.Add(QuicTime::Delta::FromSeconds(1));
+    idle_timeout = idle_timeout.Add(QuicTime::Delta::FromSeconds(3));
   } else if (idle_timeout > QuicTime::Delta::FromSeconds(1)) {
     idle_timeout = idle_timeout.Subtract(QuicTime::Delta::FromSeconds(1));
   }