Support SHA-256 in public key pins for HTTPS.

net/base/cert_verify_proc_openssl.cc

Index: net/base/cert_verify_proc_openssl.cc
===================================================================
--- net/base/cert_verify_proc_openssl.cc	(revision 142157)
+++ net/base/cert_verify_proc_openssl.cc	(working copy)
@@ -132,7 +132,7 @@
 }
 
 void AppendPublicKeyHashes(X509_STORE_CTX* store_ctx,
-                           std::vector<SHA1Fingerprint>* hashes) {
+                           std::vector<Fingerprint>* hashes) {
   STACK_OF(X509)* chain = X509_STORE_CTX_get_chain(store_ctx);
   for (int i = 0; i < sk_X509_num(chain); ++i) {
     X509* cert = sk_X509_value(chain, i);
@@ -146,9 +146,10 @@
     if (!asn1::ExtractSPKIFromDERCert(der_bytes, &spki_bytes))
       continue;
 
-    SHA1Fingerprint hash;
+    Fingerprint hash;
+    hash.tag = FINGERPRINT_SHA1;
     base::SHA1HashBytes(reinterpret_cast<const uint8*>(spki_bytes.data()),
-                        spki_bytes.size(), hash.data);
+                        spki_bytes.size(), hash.data());
     hashes->push_back(hash);
   }
 }