Remove use of deprecated base::ListValue::Append(Value*) overload in extensions.

extensions/browser/computed_hashes.cc

 // Copyright 2014 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 "extensions/browser/computed_hashes.h"
 
+#include <memory>
+#include <utility>
+
 #include "base/base64.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/stl_util.h"
 #include "base/values.h"
 #include "crypto/secure_hash.h"
 #include "crypto/sha2.h"
 
@@ skipping 109 matching lines @@
 
 ComputedHashes::Writer::Writer() : file_list_(new base::ListValue) {
 }
 
 ComputedHashes::Writer::~Writer() {
 }
 
 void ComputedHashes::Writer::AddHashes(const base::FilePath& relative_path,
                                        int block_size,
                                        const std::vector<std::string>& hashes) {
-  base::DictionaryValue* dict = new base::DictionaryValue();
+  std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
   base::ListValue* block_hashes = new base::ListValue();
-  file_list_->Append(dict);
   dict->SetString(kPathKey,
                   relative_path.NormalizePathSeparatorsTo('/').AsUTF8Unsafe());
   dict->SetInteger(kBlockSizeKey, block_size);
   dict->Set(kBlockHashesKey, block_hashes);
+  file_list_->Append(std::move(dict));
 
   for (std::vector<std::string>::const_iterator i = hashes.begin();
        i != hashes.end();
        ++i) {
     std::string encoded;
     base::Base64Encode(*i, &encoded);
     block_hashes->AppendString(encoded);
   }
 }
 
@@ skipping 35 matching lines @@
 
     // If |contents| is empty, then we want to just exit here.
     if (bytes_to_read == 0)
       break;
 
     offset += bytes_to_read;
   } while (offset < contents.size());
 }
 
 }  // namespace extensions