net: extract net/cert out of net/base

net/cert/cert_trust_anchor_provider.h

 // Copyright (c) 2013 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_CERT_TRUST_ANCHOR_PROVIDER_H_
-#define NET_BASE_CERT_TRUST_ANCHOR_PROVIDER_H_
+#ifndef NET_CERT_CERT_TRUST_ANCHOR_PROVIDER_H_
+#define NET_CERT_CERT_TRUST_ANCHOR_PROVIDER_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "net/base/net_export.h"
 
 namespace net {
 
 class X509Certificate;
 typedef std::vector<scoped_refptr<X509Certificate> > CertificateList;
 
 // Interface to retrieve the current list of additional trust anchors.
 // This is used by CertVerifier to get a list of anchors to trust in addition to
 // the anchors known to the CertVerifier.
 class NET_EXPORT CertTrustAnchorProvider {
  public:
   virtual ~CertTrustAnchorProvider() {}
 
   // Returns a list of certificates to be used as trust anchors during
   // certificate validation, in addition to (eg: the union of) any pre-existing
   // or pre-configured trust anchors.
   virtual const CertificateList& GetAdditionalTrustAnchors() = 0;
 };
 
 }  // namespace net
 
-#endif  // NET_BASE_CERT_TRUST_ANCHOR_PROVIDER_H_
+#endif  // NET_CERT_CERT_TRUST_ANCHOR_PROVIDER_H_