Don't use crypto/x509 in SSLClientSocketImpl.

net/ssl/ssl_client_session_cache.cc

Index: net/ssl/ssl_client_session_cache.cc
diff --git a/net/ssl/ssl_client_session_cache.cc b/net/ssl/ssl_client_session_cache.cc
index a21d680b1df7364bbdd03aab70e99a4d59f8390f..e2c32c5b9d35366adca4d47e2d6855011dcfa924 100644
--- a/net/ssl/ssl_client_session_cache.cc
+++ b/net/ssl/ssl_client_session_cache.cc
@@ -142,15 +142,11 @@ void SSLClientSessionCache::DumpMemoryStats(
     size_t pair_cert_count = sk_CRYPTO_BUFFER_num(session->certs);
     for (size_t i = 0; i < pair_cert_count; ++i) {
       const CRYPTO_BUFFER* cert = sk_CRYPTO_BUFFER_value(session->certs, i);
-      // TODO(xunjieli): The multipler is added to account for the difference
-      // between the serialized form and real cert allocation. Remove after
-      // crbug.com/671420 is done.
-      size_t individual_cert_size = 4 * CRYPTO_BUFFER_len(cert);
-      undeduped_cert_size += individual_cert_size;
+      undeduped_cert_size += CRYPTO_BUFFER_len(cert);
       auto result = crypto_buffer_set.insert(cert);
       if (!result.second)
         continue;
-      cert_size += individual_cert_size;
+      cert_size += CRYPTO_BUFFER_len(cert);
       cert_count++;
     }
   }