Replace gfe2_reloadable_flag_quic_enable_zero_rtt_for_tls with gfe2_restart_flag_quic_enable_zero_rtt_for_tls_v2

PiperOrigin-RevId: 323869022
Change-Id: I94b28b05adfba5e554be44154064fd19da91e166

quic/core/quic_session.cc

diff --git a/quic/core/quic_session.cc b/quic/core/quic_session.cc
index 694d76e..16d030c 100644
--- a/quic/core/quic_session.cc
+++ b/quic/core/quic_session.cc
@@ -1029,7 +1029,7 @@
 void QuicSession::OnConfigNegotiated() {
   // In versions with TLS, the configs will be set twice if 0-RTT is available.
   // In the second config setting, 1-RTT keys are guaranteed to be available.
-  if (GetQuicReloadableFlag(quic_enable_zero_rtt_for_tls) &&
+  if (GetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2) &&
       version().UsesTls() && is_configured_ &&
       connection_->encryption_level() != ENCRYPTION_FORWARD_SECURE) {
     QUIC_BUG
@@ -1248,7 +1248,7 @@
   // Or if this session is configured on TLS enabled QUIC versions,
   // attempt to retransmit 0-RTT data if there's any.
   if (connection_->version().AllowsLowFlowControlLimits() ||
-      (GetQuicReloadableFlag(quic_enable_zero_rtt_for_tls) &&
+      (GetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2) &&
        version().UsesTls())) {
     OnCanWrite();
   }