Convert crypto to std::unique_ptr

crypto/symmetric_key_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/symmetric_key.h"
 
 #include <openssl/evp.h>
 #include <openssl/rand.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
+#include <memory>
 
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
 #include "crypto/openssl_util.h"
 
 namespace crypto {
 
 SymmetricKey::~SymmetricKey() {
   std::fill(key_.begin(), key_.end(), '\0');  // Zero out the confidential key.
 }
 
 // static
 SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
                                               size_t key_size_in_bits) {
   DCHECK_EQ(AES, algorithm);
 
   // Whitelist supported key sizes to avoid accidentaly relying on
   // algorithms available in NSS but not BoringSSL and vice
   // versa. Note that BoringSSL does not support AES-192.
   if (key_size_in_bits != 128 && key_size_in_bits != 256)
     return NULL;
 
   size_t key_size_in_bytes = key_size_in_bits / 8;
   DCHECK_EQ(key_size_in_bits, key_size_in_bytes * 8);
 
   if (key_size_in_bytes == 0)
     return NULL;
 
   OpenSSLErrStackTracer err_tracer(FROM_HERE);
-  scoped_ptr<SymmetricKey> key(new SymmetricKey);
+  std::unique_ptr<SymmetricKey> key(new SymmetricKey);
   uint8_t* key_data = reinterpret_cast<uint8_t*>(
       base::WriteInto(&key->key_, key_size_in_bytes + 1));
 
   int rv = RAND_bytes(key_data, static_cast<int>(key_size_in_bytes));
   return rv == 1 ? key.release() : NULL;
 }
 
 // static
 SymmetricKey* SymmetricKey::DeriveKeyFromPassword(Algorithm algorithm,
                                                   const std::string& password,
@@ skipping 10 matching lines @@
       return NULL;
   }
 
   size_t key_size_in_bytes = key_size_in_bits / 8;
   DCHECK_EQ(key_size_in_bits, key_size_in_bytes * 8);
 
   if (key_size_in_bytes == 0)
     return NULL;
 
   OpenSSLErrStackTracer err_tracer(FROM_HERE);
-  scoped_ptr<SymmetricKey> key(new SymmetricKey);
+  std::unique_ptr<SymmetricKey> key(new SymmetricKey);
   uint8_t* key_data = reinterpret_cast<uint8_t*>(
       base::WriteInto(&key->key_, key_size_in_bytes + 1));
   int rv = PKCS5_PBKDF2_HMAC_SHA1(
       password.data(), password.length(),
       reinterpret_cast<const uint8_t*>(salt.data()), salt.length(), iterations,
       static_cast<int>(key_size_in_bytes), key_data);
   return rv == 1 ? key.release() : NULL;
 }
 
 // static
 SymmetricKey* SymmetricKey::Import(Algorithm algorithm,
                                    const std::string& raw_key) {
   if (algorithm == AES) {
     // Whitelist supported key sizes to avoid accidentaly relying on
     // algorithms available in NSS but not BoringSSL and vice
     // versa. Note that BoringSSL does not support AES-192.
     if (raw_key.size() != 128/8 && raw_key.size() != 256/8)
       return NULL;
   }
 
-  scoped_ptr<SymmetricKey> key(new SymmetricKey);
+  std::unique_ptr<SymmetricKey> key(new SymmetricKey);
   key->key_ = raw_key;
   return key.release();
 }
 
 bool SymmetricKey::GetRawKey(std::string* raw_key) {
   *raw_key = key_;
   return true;
 }
 
 }  // namespace crypto