Refactor the process of choosing validators.

src/trusted/validator/validation_status.h

Index: src/trusted/validator/validation_status.h
diff --git a/src/trusted/validator/validation_status.h b/src/trusted/validator/validation_status.h
new file mode 100644
index 0000000000000000000000000000000000000000..28c7ab8c2046a39da647a290cd6a471ed569b838
--- /dev/null
+++ b/src/trusted/validator/validation_status.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2012 The Native Client Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_VALIDATION_STATUS_H_
+#define NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_VALIDATION_STATUS_H_
+
+/* Defines possible validation status values. */
+typedef enum NaClValidationStatus {
+  /* The call to the validator succeeded. */
+  NaClValidationSucceeded,
+  /* The call to the validator failed (Reason unspecified) */
+  NaClValidationFailed,
+  /* The call to the validator failed, due to not enough memory. */
+  NaClValidationFailedOutOfMemory,
+  /* The call to the validator failed, due to it not being implemented yet. */
+  NaClValidationFailedNotImplemented,
+  /* The call to the validator failed, because the CPU is not supported. */
+  NaClValidationFailedCpuNotSupported,
+  /* The call to the validator failed, due to segment alignment issues. */
+  NaClValidationFailedSegmentationIssue
+} NaClValidationStatus;
+
+#endif  /* NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_VALIDATION_STATUS_H_ */