Remove the "snionly" concept from the HSTS preload.

net/socket_stream/socket_stream.cc

Index: net/socket_stream/socket_stream.cc
diff --git a/net/socket_stream/socket_stream.cc b/net/socket_stream/socket_stream.cc
index f19a2e928f90eb0c0d6232aaf16d07b30f4199e0..422d61d45203c324fd48ed381b58dd34a3e2fd95 100644
--- a/net/socket_stream/socket_stream.cc
+++ b/net/socket_stream/socket_stream.cc
@@ -1340,11 +1340,7 @@ int SocketStream::HandleCertificateError(int result) {
   ssl_socket->GetSSLInfo(&ssl_info);
 
   TransportSecurityState* state = context_->transport_security_state();
-  const bool fatal =
-      state &&
-      state->ShouldSSLErrorsBeFatal(
-          url_.host(),
-          SSLConfigService::IsSNIAvailable(context_->ssl_config_service()));
+  const bool fatal = state && state->ShouldSSLErrorsBeFatal(url_.host());
 
   delegate_->OnSSLCertificateError(this, ssl_info, fatal);
   return ERR_IO_PENDING;