Convert crypto to std::unique_ptr

crypto/hmac.cc

 // 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.
 
 #include "crypto/hmac.h"
 
 #include <stddef.h>
 
 #include <algorithm>
+#include <memory>
 
 #include "base/logging.h"
 #include "crypto/secure_util.h"
 #include "crypto/symmetric_key.h"
 
 namespace crypto {
 
 bool HMAC::Init(SymmetricKey* key) {
   std::string raw_key;
   bool result = key->GetRawKey(&raw_key) && Init(raw_key);
@@ skipping 20 matching lines @@
   if (digest.size() != DigestLength())
     return false;
   return VerifyTruncated(data, digest);
 }
 
 bool HMAC::VerifyTruncated(const base::StringPiece& data,
                            const base::StringPiece& digest) const {
   if (digest.empty())
     return false;
   size_t digest_length = DigestLength();
-  scoped_ptr<unsigned char[]> computed_digest(
+  std::unique_ptr<unsigned char[]> computed_digest(
       new unsigned char[digest_length]);
   if (!Sign(data, computed_digest.get(), digest_length))
     return false;
 
   return SecureMemEqual(digest.data(), computed_digest.get(),
                         std::min(digest.size(), digest_length));
 }
 
 }  // namespace crypto