Add CheckOCSPDateValid() to net/cert/internal

net/der/encode_values.h

Index: net/der/encode_values.h
diff --git a/net/der/encode_values.h b/net/der/encode_values.h
new file mode 100644
index 0000000000000000000000000000000000000000..00035a98870fb4841513be1284117a8a6b524272
--- /dev/null
+++ b/net/der/encode_values.h
@@ -0,0 +1,28 @@
+// Copyright 2015 The Chromium 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 NET_DER_ENCODE_VALUES_H_
+#define NET_DER_ENCODE_VALUES_H_
+
+#include "net/base/net_export.h"
+#include "net/der/parse_values.h"
+
+namespace base {
+class Time;
+}
+
+namespace net {
+
+namespace der {
+
+// Encodes |time|, a UTC-based time, to DER, for comparing against other
+// GeneralizedTime objects.
+NET_EXPORT der::GeneralizedTime EncodeTimeAsGeneralizedTime(
+    const base::Time& time);
+
+}  // namespace der
+
+}  // namespace net
+
+#endif  // NET_DER_ENCODE_VALUES_H