Restore SSL_SESSION/X509Certificate X509* sharing

net/cert/x509_util_openssl.cc

Index: net/cert/x509_util_openssl.cc
diff --git a/net/cert/x509_util_openssl.cc b/net/cert/x509_util_openssl.cc
index 4e79ad8a2115cad3b04d4e9048ad8efe7e094be1..32c421f7203b6daab95381389fcdeac6d94630bc 100644
--- a/net/cert/x509_util_openssl.cc
+++ b/net/cert/x509_util_openssl.cc
@@ -285,9 +285,16 @@ bool ParseDate(ASN1_TIME* x509_time, base::Time* time) {
 }
 
 // Returns true if |der_cache| points to valid data, false otherwise.
-// (note: the DER-encoded data in |der_cache| is owned by |cert|, callers should
+// (note: the DER-encoded data in |der_cache| is owned by |x509|, callers should
 // not free it).
 bool GetDER(X509* x509, base::StringPiece* der_cache) {
+  if (x509->buf) {
+    *der_cache = base::StringPiece(
+        reinterpret_cast<const char*>(CRYPTO_BUFFER_data(x509->buf)),
+        CRYPTO_BUFFER_len(x509->buf));
+    return true;
+  }
+
   int x509_der_cache_index =
       g_der_cache_singleton.Get().der_cache_ex_index();