Implement QUIC key extraction.

net/quic/crypto/quic_crypto_client_config.cc

Index: net/quic/crypto/quic_crypto_client_config.cc
diff --git a/net/quic/crypto/quic_crypto_client_config.cc b/net/quic/crypto/quic_crypto_client_config.cc
index 49ce8a9bc9c962e99f02ade282cbd088da3536b5..28aa2129afe37b66a323b5d2f58723c66b8efd1f 100644
--- a/net/quic/crypto/quic_crypto_client_config.cc
+++ b/net/quic/crypto/quic_crypto_client_config.cc
@@ -512,7 +512,8 @@ QuicErrorCode QuicCryptoClientConfig::FillClientHello(
     if (!CryptoUtils::DeriveKeys(out_params->initial_premaster_secret,
                                  out_params->aead, out_params->client_nonce,
                                  out_params->server_nonce, hkdf_input,
-                                 CryptoUtils::CLIENT, &crypters)) {
+                                 CryptoUtils::CLIENT, &crypters,
+                                 NULL /* subkey secret */)) {
       *error_details = "Symmetric key setup failed";
       return QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED;
     }
@@ -554,7 +555,8 @@ QuicErrorCode QuicCryptoClientConfig::FillClientHello(
   if (!CryptoUtils::DeriveKeys(
            out_params->initial_premaster_secret, out_params->aead,
            out_params->client_nonce, out_params->server_nonce, hkdf_input,
-           CryptoUtils::CLIENT, &out_params->initial_crypters)) {
+           CryptoUtils::CLIENT, &out_params->initial_crypters,
+           NULL /* subkey secret */)) {
     *error_details = "Symmetric key setup failed";
     return QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED;
   }
@@ -734,7 +736,8 @@ QuicErrorCode QuicCryptoClientConfig::ProcessServerHello(
   if (!CryptoUtils::DeriveKeys(
            out_params->forward_secure_premaster_secret, out_params->aead,
            out_params->client_nonce, out_params->server_nonce, hkdf_input,
-           CryptoUtils::CLIENT, &out_params->forward_secure_crypters)) {
+           CryptoUtils::CLIENT, &out_params->forward_secure_crypters,
+           &out_params->subkey_secret)) {
     *error_details = "Symmetric key setup failed";
     return QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED;
   }