net: extract net/cert out of net/base

net/cert/x509_util.h

 // Copyright (c) 2012 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_BASE_X509_UTIL_H_
-#define NET_BASE_X509_UTIL_H_
+#ifndef NET_CERT_X509_UTIL_H_
+#define NET_CERT_X509_UTIL_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/time.h"
 #include "net/base/net_export.h"
 
 namespace crypto {
 class ECPrivateKey;
 }
@@ skipping 46 matching lines @@
       const scoped_refptr<X509Certificate>& b) const;
 
  private:
   base::Time now_;
 };
 
 } // namespace x509_util
 
 } // namespace net
 
-#endif  // NET_BASE_X509_UTIL_H_
+#endif  // NET_CERT_X509_UTIL_H_