Deprecate FLAG_quic_block_unencrypted_writes

net/quic/quic_session.cc

Index: net/quic/quic_session.cc
diff --git a/net/quic/quic_session.cc b/net/quic/quic_session.cc
index d8ec06c2f21273da9eb764c6eb96fba5fbcd0169..dd3893e716b2a066e9fac31bf448eb0dcdc49f5b 100644
--- a/net/quic/quic_session.cc
+++ b/net/quic/quic_session.cc
@@ -241,8 +241,7 @@ QuicConsumedData QuicSession::WritevData(
     bool fin,
     FecProtection fec_protection,
     QuicAckListenerInterface* ack_notifier_delegate) {
-  if (FLAGS_quic_block_unencrypted_writes && !IsEncryptionEstablished() &&
-      id != kCryptoStreamId) {
+  if (!IsEncryptionEstablished() && id != kCryptoStreamId) {
     // Do not let streams write without encryption. The calling stream will end
     // up write blocked until OnCanWrite is next called.
     return QuicConsumedData(0, false);
@@ -530,9 +529,7 @@ void QuicSession::OnCryptoHandshakeEvent(CryptoHandshakeEvent event) {
     // to QuicSession since it is the glue.
     case ENCRYPTION_FIRST_ESTABLISHED:
       // Given any streams blocked by encryption a chance to write.
-      if (FLAGS_quic_block_unencrypted_writes) {
-        OnCanWrite();
-      }
+      OnCanWrite();
       break;
 
     case ENCRYPTION_REESTABLISHED:
@@ -540,9 +537,7 @@ void QuicSession::OnCryptoHandshakeEvent(CryptoHandshakeEvent event) {
       // decrypted by the peer.
       connection_->RetransmitUnackedPackets(ALL_INITIAL_RETRANSMISSION);
       // Given any streams blocked by encryption a chance to write.
-      if (FLAGS_quic_block_unencrypted_writes) {
-        OnCanWrite();
-      }
+      OnCanWrite();
       break;
 
     case HANDSHAKE_CONFIRMED: