Add initial CertVerifyProcBuiltin.

net/cert/internal/trust_store_in_memory.h

 // Copyright 2016 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_CERT_INTERNAL_TRUST_STORE_IN_MEMORY_H_
 #define NET_CERT_INTERNAL_TRUST_STORE_IN_MEMORY_H_
 
 #include <unordered_map>
 
 #include "base/memory/ref_counted.h"
@@ skipping 12 matching lines @@
 
   // Empties the trust store, resetting it to original state.
   void Clear();
 
   void AddTrustAnchor(scoped_refptr<TrustAnchor> anchor);
 
   // TrustStore implementation:
   void FindTrustAnchorsForCert(const scoped_refptr<ParsedCertificate>& cert,
                                TrustAnchors* matches) const override;
 
+  // Returns true if the trust store contains the given TrustAnchor instance.
+  // Note that this considers only pointer equality and not a more
+  // broad notion of equivalence based on the object's content.
+  bool Contains(const TrustAnchor* anchor) const;
+
  private:
   // Multimap from normalized subject -> TrustAnchor.
   std::unordered_multimap<base::StringPiece,
                           scoped_refptr<TrustAnchor>,
                           base::StringPieceHash>
       anchors_;
 
   DISALLOW_COPY_AND_ASSIGN(TrustStoreInMemory);
 };
 
 }  // namespace net
 
 #endif  // NET_CERT_INTERNAL_TRUST_STORE_IN_MEMORY_H_