Convert crypto to std::unique_ptr

crypto/hmac_openssl.cc

 // Copyright (c) 2011 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 <openssl/hmac.h>
 #include <stddef.h>
 
 #include <algorithm>
+#include <memory>
 #include <vector>
 
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "crypto/openssl_util.h"
 
 namespace crypto {
 
 struct HMACPlatformData {
   std::vector<unsigned char> key;
 };
 
 HMAC::HMAC(HashAlgorithm hash_alg) : hash_alg_(hash_alg) {
@@ skipping 23 matching lines @@
   DCHECK(plat_);  // Init must be called before Sign.
 
   ScopedOpenSSLSafeSizeBuffer<EVP_MAX_MD_SIZE> result(digest, digest_length);
   return !!::HMAC(hash_alg_ == SHA1 ? EVP_sha1() : EVP_sha256(),
                   plat_->key.data(), plat_->key.size(),
                   reinterpret_cast<const unsigned char*>(data.data()),
                   data.size(), result.safe_buffer(), NULL);
 }
 
 }  // namespace crypto