Provide metadata to validator to allow faster caching.

src/trusted/validator_mips/ncvalidate.cc

Index: src/trusted/validator_mips/ncvalidate.cc
diff --git a/src/trusted/validator_mips/ncvalidate.cc b/src/trusted/validator_mips/ncvalidate.cc
index 4087f0dfd94f51cdbcf34286cfb9154f43a24279..401edf2f9b26d37aff9970196e8a89680ecd4446 100644
--- a/src/trusted/validator_mips/ncvalidate.cc
+++ b/src/trusted/validator_mips/ncvalidate.cc
@@ -113,9 +113,11 @@ static NaClValidationStatus ApplyValidatorMips(
     int stubout_mode,
     int readonly_text,
     const NaClCPUFeatures *cpu_features,
+    const struct NaClValidationMetadata *metadata,
     struct NaClValidationCache *cache) {
   NaClValidationStatus status = NaClValidationFailedNotImplemented;
   UNREFERENCED_PARAMETER(cpu_features);
+  UNREFERENCED_PARAMETER(metadata);
   UNREFERENCED_PARAMETER(cache);
   if (stubout_mode) {
     NCValidateSegment(data, guest_addr, size, true);