link with validator_ragel only in standalone binaries

src/trusted/service_runtime/sel_validate_image.c

Index: src/trusted/service_runtime/sel_validate_image.c
diff --git a/src/trusted/service_runtime/sel_validate_image.c b/src/trusted/service_runtime/sel_validate_image.c
index 5b30195b388942ba310e2fbe74fd8e8d3d3155d2..197c98ddcbfcf1c8b73ed6c2a26096cd549be40d 100644
--- a/src/trusted/service_runtime/sel_validate_image.c
+++ b/src/trusted/service_runtime/sel_validate_image.c
@@ -34,7 +34,8 @@ typedef NaClValidationStatus (*ValidateFunc) (
 static ValidateFunc NaClSelectValidator(struct NaClApp *nap) {
   ValidateFunc ret = NACL_SUBARCH_NAME(ApplyValidator,
                                        NACL_TARGET_ARCH, NACL_TARGET_SUBARCH);
-#ifdef __arm__
+  /* Avoid linking two validators into Chromium to keep download size small. */
+#if defined(__arm__) || !defined(NACL_STANDALONE)
   UNREFERENCED_PARAMETER(nap);
 #else
   if (nap->enable_dfa_validator) {