Add more out of line copy ctors for complex classes.

net/quic/crypto/quic_crypto_server_config.cc

 // Copyright 2013 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/crypto/quic_crypto_server_config.h"
 
 #include <stdlib.h>
 
 #include <algorithm>
 
@@ skipping 187 matching lines @@
   delete result;
   delete this;
 }
 
 QuicCryptoServerConfig::ConfigOptions::ConfigOptions()
     : expiry_time(QuicWallTime::Zero()),
       channel_id_enabled(false),
       token_binding_enabled(false),
       p256(false) {}
 
+QuicCryptoServerConfig::ConfigOptions::ConfigOptions(
+    const ConfigOptions& other) = default;
+
 QuicCryptoServerConfig::QuicCryptoServerConfig(
     StringPiece source_address_token_secret,
     QuicRandom* server_nonce_entropy,
     ProofSource* proof_source)
     : replay_protection_(true),
       chlo_multiplier_(kMultiplier),
       configs_lock_(),
       primary_config_(nullptr),
       next_config_promotion_time_(QuicWallTime::Zero()),
       server_nonce_strike_register_lock_(),
@@ skipping 1594 matching lines @@
       priority(0),
       source_address_token_boxer(nullptr) {}
 
 QuicCryptoServerConfig::Config::~Config() {
   STLDeleteElements(&key_exchanges);
 }
 
 QuicCryptoProof::QuicCryptoProof() {}
 QuicCryptoProof::~QuicCryptoProof() {}
 }  // namespace net