Fix SSL error code for unexpected errSSLClosedGraceful on Mac

net/socket/ssl_client_socket_mac.cc

Index: net/socket/ssl_client_socket_mac.cc
diff --git a/net/socket/ssl_client_socket_mac.cc b/net/socket/ssl_client_socket_mac.cc
index 492a6754399f2416c5eeebc06229c7288ab6c7ad..4bc6ae804925e94e4afb2a2c741842e3b6f8c7c2 100644
--- a/net/socket/ssl_client_socket_mac.cc
+++ b/net/socket/ssl_client_socket_mac.cc
@@ -709,9 +709,10 @@ int SSLClientSocketMac::DoHandshakeStart() {
     }
   }
 
-  if (status == errSSLClosedGraceful)
+  if (status == errSSLClosedGraceful) {
     // The server unexpectedly closed on us.
-    return ERR_UNEXPECTED;
+    return ERR_SSL_PROTOCOL_ERROR;
+  }
 
   int net_error = NetErrorFromOSStatus(status);
   if (status == noErr || IsCertificateError(net_error)) {
@@ -769,7 +770,7 @@ int SSLClientSocketMac::DoHandshakeFinish() {
     next_handshake_state_ = STATE_HANDSHAKE_FINISH;
 
   if (status == errSSLClosedGraceful)
-    return ERR_UNEXPECTED;
+    return ERR_SSL_PROTOCOL_ERROR;
 
   if (status == noErr) {
     completed_handshake_ = true;