Get rid of the rest of CreateStringValue

components/metrics/persisted_logs.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 "components/metrics/persisted_logs.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/md5.h"
@@ skipping 23 matching lines @@
   std::string base64_result;
   if (!list_value.GetString(index, &base64_result))
     return false;
   return base::Base64Decode(base64_result, result);
 }
 
 // Base64-encodes |str| and appends the result to |list_value|.
 void AppendBase64String(const std::string& str, base::ListValue* list_value) {
   std::string base64_str;
   base::Base64Encode(str, &base64_str);
-  list_value->Append(base::Value::CreateStringValue(base64_str));
+  list_value->AppendString(base64_str);
 }
 
 }  // namespace
 
 void PersistedLogs::LogHashPair::Init(const std::string& log_data) {
   DCHECK(!log_data.empty());
 
   if (!GzipCompress(log_data, &compressed_log_data)) {
     NOTREACHED();
     return;
@@ skipping 234 matching lines @@
     return MakeRecallStatusHistogram(CHECKSUM_STRING_CORRUPTION);
   }
   if (recovered_md5 != base::MD5DigestToBase16(digest)) {
     list_.clear();
     return MakeRecallStatusHistogram(CHECKSUM_CORRUPTION);
   }
   return MakeRecallStatusHistogram(RECALL_SUCCESS);
 }
 
 }  // namespace metrics