Remove unnecessary copies in CRLSet parsing.

net/cert/crl_set.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_CERT_CRL_SET_H_
 #define NET_CERT_CRL_SET_H_
 
-#include <map>
 #include <string>
 #include <utility>
 #include <vector>
 
+#include "base/containers/hash_tables.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string_piece.h"
 #include "net/base/net_export.h"
 #include "net/cert/x509_cert_types.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace net {
@@ skipping 87 matching lines @@
 
   uint32 sequence_;
   CRLList crls_;
   // not_after_ contains the time, in UNIX epoch seconds, after which the
   // CRLSet should be considered stale, or 0 if no such time was given.
   uint64 not_after_;
   // crls_index_by_issuer_ maps from issuer SPKI hashes to the index in |crls_|
   // where the information for that issuer can be found. We have both |crls_|
   // and |crls_index_by_issuer_| because, when applying a delta update, we need
   // to identify a CRL by index.
-  std::map<std::string, size_t> crls_index_by_issuer_;
+  base::hash_map<std::string, size_t> crls_index_by_issuer_;
   // blocked_spkis_ contains the SHA256 hashes of SPKIs which are to be blocked
   // no matter where in a certificate chain they might appear.
   std::vector<std::string> blocked_spkis_;
 };
 
 }  // namespace net
 
 #endif  // NET_CERT_CRL_SET_H_