Deprecate FLAGS_quic_reloadable_flag_enable_async_get_proof

net/quic/core/quic_crypto_server_stream.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/core/quic_crypto_server_stream.h"
 
 #include <memory>
 
 #include "net/quic/core/crypto/crypto_protocol.h"
 #include "net/quic/core/crypto/crypto_utils.h"
@@ skipping 266 matching lines @@
   handshake_confirmed_ = true;
   session()->OnCryptoHandshakeEvent(QuicSession::HANDSHAKE_CONFIRMED);
 }
 
 void QuicCryptoServerStream::SendServerConfigUpdate(
     const CachedNetworkParameters* cached_network_params) {
   if (!handshake_confirmed_) {
     return;
   }
 
-  if (FLAGS_quic_reloadable_flag_enable_async_get_proof) {
-    if (send_server_config_update_cb_ != nullptr) {
-      QUIC_DVLOG(1)
-          << "Skipped server config update since one is already in progress";
-      return;
-    }
-
-    std::unique_ptr<SendServerConfigUpdateCallback> cb(
-        new SendServerConfigUpdateCallback(this));
-    send_server_config_update_cb_ = cb.get();
-
-    crypto_config_->BuildServerConfigUpdateMessage(
-        session()->connection()->version(), chlo_hash_,
-        previous_source_address_tokens_,
-        session()->connection()->self_address(),
-        session()->connection()->peer_address().host(),
-        session()->connection()->clock(),
-        session()->connection()->random_generator(), compressed_certs_cache_,
-        *crypto_negotiated_params_, cached_network_params,
-        (session()->config()->HasReceivedConnectionOptions()
-             ? session()->config()->ReceivedConnectionOptions()
-             : QuicTagVector()),
-        std::move(cb));
+  if (send_server_config_update_cb_ != nullptr) {
+    QUIC_DVLOG(1)
+        << "Skipped server config update since one is already in progress";
     return;
   }
 
-  CryptoHandshakeMessage server_config_update_message;
-  if (!crypto_config_->BuildServerConfigUpdateMessage(
-          session()->connection()->version(), chlo_hash_,
-          previous_source_address_tokens_,
-          session()->connection()->self_address(),
-          session()->connection()->peer_address().host(),
-          session()->connection()->clock(),
-          session()->connection()->random_generator(), compressed_certs_cache_,
-          *crypto_negotiated_params_, cached_network_params,
-          (session()->config()->HasReceivedConnectionOptions()
-               ? session()->config()->ReceivedConnectionOptions()
-               : QuicTagVector()),
-          &server_config_update_message)) {
-    QUIC_DVLOG(1) << "Server: Failed to build server config update (SCUP)!";
-    return;
-  }
+  std::unique_ptr<SendServerConfigUpdateCallback> cb(
+      new SendServerConfigUpdateCallback(this));
+  send_server_config_update_cb_ = cb.get();
 
-  QUIC_DVLOG(1) << "Server: Sending server config update: "
-                << server_config_update_message.DebugString();
-  const QuicData& data = server_config_update_message.GetSerialized();
-  WriteOrBufferData(StringPiece(data.data(), data.length()), false, nullptr);
-
-  ++num_server_config_update_messages_sent_;
+  crypto_config_->BuildServerConfigUpdateMessage(
+      session()->connection()->version(), chlo_hash_,
+      previous_source_address_tokens_, session()->connection()->self_address(),
+      session()->connection()->peer_address().host(),
+      session()->connection()->clock(),
+      session()->connection()->random_generator(), compressed_certs_cache_,
+      *crypto_negotiated_params_, cached_network_params,
+      (session()->config()->HasReceivedConnectionOptions()
+           ? session()->config()->ReceivedConnectionOptions()
+           : QuicTagVector()),
+      std::move(cb));
 }
 
 QuicCryptoServerStream::SendServerConfigUpdateCallback::
     SendServerConfigUpdateCallback(QuicCryptoServerStream* parent)
     : parent_(parent) {}
 
 void QuicCryptoServerStream::SendServerConfigUpdateCallback::Cancel() {
   parent_ = nullptr;
 }
 
@@ skipping 142 matching lines @@
 QuicConnectionId QuicCryptoServerStream::GenerateConnectionIdForReject(
     bool use_stateless_rejects) {
   if (!use_stateless_rejects) {
     return 0;
   }
   return helper_->GenerateConnectionIdForReject(
       session()->connection()->connection_id());
 }
 
 }  // namespace net