Support SHA-256 in public key pins for HTTPS.

net/base/cert_verify_proc.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_CERT_VERIFY_PROC_H_
 #define NET_BASE_CERT_VERIFY_PROC_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 58 matching lines @@
   virtual int VerifyInternal(X509Certificate* cert,
                              const std::string& hostname,
                              int flags,
                              CRLSet* crl_set,
                              CertVerifyResult* verify_result) = 0;
 
   // Returns true if |cert| is explicitly blacklisted.
   static bool IsBlacklisted(X509Certificate* cert);
 
   // IsPublicKeyBlacklisted returns true iff one of |public_key_hashes| (which
-  // are SHA1 hashes of SubjectPublicKeyInfo structures) is explicitly blocked.
+  // are hashes of SubjectPublicKeyInfo structures) is explicitly blocked.
   static bool IsPublicKeyBlacklisted(
-      const std::vector<SHA1Fingerprint>& public_key_hashes);
+      const std::vector<Fingerprint>& public_key_hashes);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_CERT_VERIFY_PROC_H_