Remove ListValue::Append(new {Fundamental,String}Value(...)) pattern in //net

net/quic/quic_connection_logger.cc

Index: net/quic/quic_connection_logger.cc
diff --git a/net/quic/quic_connection_logger.cc b/net/quic/quic_connection_logger.cc
index 7de40a89b2c7d412b1c95c7aeb9f0d8ebf15642c..dca50eb71c627682d9f81fde83909b680f0eb885 100644
--- a/net/quic/quic_connection_logger.cc
+++ b/net/quic/quic_connection_logger.cc
@@ -236,7 +236,7 @@ std::unique_ptr<base::Value> NetLogQuicCertificateVerifiedCallback(
   base::ListValue* subjects = new base::ListValue();
   for (std::vector<std::string>::const_iterator it = dns_names.begin();
        it != dns_names.end(); it++) {
-    subjects->Append(new base::StringValue(*it));
+    subjects->AppendString(*it);
   }
   dict->Set("subjects", subjects);
   return std::move(dict);