Replace scoped_ptr with unique_ptr in webrtc/base/

webrtc/base/messagedigest.cc

 /*
  *  Copyright 2011 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include "webrtc/base/messagedigest.h"
 
+#include <memory>
+
 #include <string.h>
 
 #include "webrtc/base/basictypes.h"
 #include "webrtc/base/sslconfig.h"
 #if SSL_USE_OPENSSL
 #include "webrtc/base/openssldigest.h"
 #else
 #include "webrtc/base/md5digest.h"
 #include "webrtc/base/sha1digest.h"
 #endif
-#include "webrtc/base/scoped_ptr.h"
 #include "webrtc/base/stringencode.h"
 
 namespace rtc {
 
 // From RFC 4572.
 const char DIGEST_MD5[]     = "md5";
 const char DIGEST_SHA_1[]   = "sha-1";
 const char DIGEST_SHA_224[] = "sha-224";
 const char DIGEST_SHA_256[] = "sha-256";
 const char DIGEST_SHA_384[] = "sha-384";
@@ skipping 34 matching lines @@
 }
 
 size_t ComputeDigest(MessageDigest* digest, const void* input, size_t in_len,
                      void* output, size_t out_len) {
   digest->Update(input, in_len);
   return digest->Finish(output, out_len);
 }
 
 size_t ComputeDigest(const std::string& alg, const void* input, size_t in_len,
                      void* output, size_t out_len) {
-  scoped_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
+  std::unique_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
   return (digest) ?
       ComputeDigest(digest.get(), input, in_len, output, out_len) :
       0;
 }
 
 std::string ComputeDigest(MessageDigest* digest, const std::string& input) {
-  scoped_ptr<char[]> output(new char[digest->Size()]);
+  std::unique_ptr<char[]> output(new char[digest->Size()]);
   ComputeDigest(digest, input.data(), input.size(),
                 output.get(), digest->Size());
   return hex_encode(output.get(), digest->Size());
 }
 
 bool ComputeDigest(const std::string& alg, const std::string& input,
                    std::string* output) {
-  scoped_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
+  std::unique_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
   if (!digest) {
     return false;
   }
   *output = ComputeDigest(digest.get(), input);
   return true;
 }
 
 std::string ComputeDigest(const std::string& alg, const std::string& input) {
   std::string output;
   ComputeDigest(alg, input, &output);
   return output;
 }
 
 // Compute a RFC 2104 HMAC: H(K XOR opad, H(K XOR ipad, text))
 size_t ComputeHmac(MessageDigest* digest,
                    const void* key, size_t key_len,
                    const void* input, size_t in_len,
                    void* output, size_t out_len) {
   // We only handle algorithms with a 64-byte blocksize.
   // TODO: Add BlockSize() method to MessageDigest.
   size_t block_len = kBlockSize;
   if (digest->Size() > 32) {
     return 0;
   }
   // Copy the key to a block-sized buffer to simplify padding.
   // If the key is longer than a block, hash it and use the result instead.
-  scoped_ptr<uint8_t[]> new_key(new uint8_t[block_len]);
+  std::unique_ptr<uint8_t[]> new_key(new uint8_t[block_len]);
   if (key_len > block_len) {
     ComputeDigest(digest, key, key_len, new_key.get(), block_len);
     memset(new_key.get() + digest->Size(), 0, block_len - digest->Size());
   } else {
     memcpy(new_key.get(), key, key_len);
     memset(new_key.get() + key_len, 0, block_len - key_len);
   }
   // Set up the padding from the key, salting appropriately for each padding.
-  scoped_ptr<uint8_t[]> o_pad(new uint8_t[block_len]);
-  scoped_ptr<uint8_t[]> i_pad(new uint8_t[block_len]);
+  std::unique_ptr<uint8_t[]> o_pad(new uint8_t[block_len]);
+  std::unique_ptr<uint8_t[]> i_pad(new uint8_t[block_len]);
   for (size_t i = 0; i < block_len; ++i) {
     o_pad[i] = 0x5c ^ new_key[i];
     i_pad[i] = 0x36 ^ new_key[i];
   }
   // Inner hash; hash the inner padding, and then the input buffer.
-  scoped_ptr<uint8_t[]> inner(new uint8_t[digest->Size()]);
+  std::unique_ptr<uint8_t[]> inner(new uint8_t[digest->Size()]);
   digest->Update(i_pad.get(), block_len);
   digest->Update(input, in_len);
   digest->Finish(inner.get(), digest->Size());
   // Outer hash; hash the outer padding, and then the result of the inner hash.
   digest->Update(o_pad.get(), block_len);
   digest->Update(inner.get(), digest->Size());
   return digest->Finish(output, out_len);
 }
 
 size_t ComputeHmac(const std::string& alg, const void* key, size_t key_len,
                    const void* input, size_t in_len,
                    void* output, size_t out_len) {
-  scoped_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
+  std::unique_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
   if (!digest) {
     return 0;
   }
   return ComputeHmac(digest.get(), key, key_len,
                      input, in_len, output, out_len);
 }
 
 std::string ComputeHmac(MessageDigest* digest, const std::string& key,
                         const std::string& input) {
-  scoped_ptr<char[]> output(new char[digest->Size()]);
+  std::unique_ptr<char[]> output(new char[digest->Size()]);
   ComputeHmac(digest, key.data(), key.size(),
               input.data(), input.size(), output.get(), digest->Size());
   return hex_encode(output.get(), digest->Size());
 }
 
 bool ComputeHmac(const std::string& alg, const std::string& key,
                  const std::string& input, std::string* output) {
-  scoped_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
+  std::unique_ptr<MessageDigest> digest(MessageDigestFactory::Create(alg));
   if (!digest) {
     return false;
   }
   *output = ComputeHmac(digest.get(), key, input);
   return true;
 }
 
 std::string ComputeHmac(const std::string& alg, const std::string& key,
                         const std::string& input) {
   std::string output;
   ComputeHmac(alg, key, input, &output);
   return output;
 }
 
 }  // namespace rtc