Use cached compressed certs if available to reduce load of compressing certs. Flag protected by qui…

net/quic/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/quic_crypto_server_stream.h"
 
 #include "base/base64.h"
 #include "crypto/secure_hash.h"
 #include "net/quic/crypto/crypto_protocol.h"
 #include "net/quic/crypto/crypto_utils.h"
@@ skipping 208 matching lines @@
   if (!handshake_confirmed_) {
     return;
   }
 
   CryptoHandshakeMessage server_config_update_message;
   if (!crypto_config_->BuildServerConfigUpdateMessage(
           session()->connection()->version(), previous_source_address_tokens_,
           session()->connection()->self_address().address(),
           session()->connection()->peer_address().address(),
           session()->connection()->clock(),
-          session()->connection()->random_generator(),
+          session()->connection()->random_generator(), compressed_certs_cache_,
           crypto_negotiated_params_, cached_network_params,
           &server_config_update_message)) {
     DVLOG(1) << "Server: Failed to build server config update (SCUP)!";
     return;
   }
 
   DVLOG(1) << "Server: Sending server config update: "
            << server_config_update_message.DebugString();
   const QuicData& data = server_config_update_message.GetSerialized();
   WriteOrBufferData(string(data.data(), data.length()), false, nullptr);
@@ skipping 92 matching lines @@
   QuicConnection* connection = session()->connection();
   const QuicConnectionId server_designated_connection_id =
       use_stateless_rejects_in_crypto_config
           ? GenerateConnectionIdForReject(connection->connection_id())
           : 0;
   return crypto_config_->ProcessClientHello(
       result, connection->connection_id(), connection->self_address().address(),
       connection->peer_address(), version(), connection->supported_versions(),
       use_stateless_rejects_in_crypto_config, server_designated_connection_id,
       connection->clock(), connection->random_generator(),
-      &crypto_negotiated_params_, &crypto_proof_, reply, error_details);
+      compressed_certs_cache_, &crypto_negotiated_params_, &crypto_proof_,
+      reply, error_details);
 }
 
 void QuicCryptoServerStream::OverrideQuicConfigDefaults(QuicConfig* config) {}
 
 QuicCryptoServerStream::ValidateCallback::ValidateCallback(
     QuicCryptoServerStream* parent)
     : parent_(parent) {}
 
 void QuicCryptoServerStream::ValidateCallback::Cancel() {
   parent_ = nullptr;
@@ skipping 26 matching lines @@
   }
   for (size_t i = 0; i < received_tags_length; ++i) {
     if (received_tags[i] == kSREJ) {
       return true;
     }
   }
   return false;
 }
 
 }  // namespace net