Add validation caching interface.

src/trusted/validator/x86/64/ncvalidate_verbose.c

Index: src/trusted/validator/x86/64/ncvalidate_verbose.c
diff --git a/src/trusted/validator/x86/64/ncvalidate_verbose.c b/src/trusted/validator/x86/64/ncvalidate_verbose.c
index 9127277ddb6b8d18d15bfd5388c2739c6a6302d0..bb153b8584509cffe45cb6e99af3d4693d273420 100644
--- a/src/trusted/validator/x86/64/ncvalidate_verbose.c
+++ b/src/trusted/validator/x86/64/ncvalidate_verbose.c
@@ -37,8 +37,11 @@ static NaClValidationStatus NaClApplyValidatorVerbosely_x86_64(
   NaClValidatorStateSetLogVerbosity(vstate, LOG_ERROR);
   NaClValidatorStateSetMaxReportedErrors(vstate, -1);  /* Report all errors. */
   NaClValidatorStateSetErrorReporter(vstate, &kNaClVerboseErrorReporter);
-  return NaClSegmentValidate_x86_64(guest_addr, data, size, vstate)
-      ? NaClValidationSucceeded : NaClValidationFailed;
+  NaClValidateSegment(data, guest_addr, size, vstate);
+  status =
+      NaClValidatesOk(vstate) ? NaClValidationSucceeded : NaClValidationFailed;
+  NaClValidatorStateDestroy(vstate);
+  return status;
 }
 
 NaClValidationStatus NACL_SUBARCH_NAME(ApplyValidatorVerbosely, x86, 64)