Support SHA-256 in public key pins for HTTPS.

net/base/cert_verify_proc.cc

Index: net/base/cert_verify_proc.cc
===================================================================
--- net/base/cert_verify_proc.cc	(revision 142157)
+++ net/base/cert_verify_proc.cc	(working copy)
@@ -217,8 +217,9 @@
 }
 
 // static
+// NOTE: This implementation assumes and enforces that the hashes are SHA1.
 bool CertVerifyProc::IsPublicKeyBlacklisted(
-    const std::vector<SHA1Fingerprint>& public_key_hashes) {
+    const std::vector<Fingerprint>& public_key_hashes) {
   static const unsigned kNumHashes = 8;
   static const uint8 kHashes[kNumHashes][base::kSHA1Length] = {
     // Subject: CN=DigiNotar Root CA
@@ -259,10 +260,12 @@
   };
 
   for (unsigned i = 0; i < kNumHashes; i++) {
-    for (std::vector<SHA1Fingerprint>::const_iterator
+    for (std::vector<Fingerprint>::const_iterator
          j = public_key_hashes.begin(); j != public_key_hashes.end(); ++j) {
-      if (memcmp(j->data, kHashes[i], base::kSHA1Length) == 0)
+      if (j->tag == FINGERPRINT_SHA1 &&
+          memcmp(j->data(), kHashes[i], base::kSHA1Length) == 0) {
         return true;
+      }
     }
   }