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

net/dns/dns_config_service.cc

Index: net/dns/dns_config_service.cc
diff --git a/net/dns/dns_config_service.cc b/net/dns/dns_config_service.cc
index 9661850f12fbad481db1b086bb910fbd4fed6d71..0f839478a4cea09f087c6ced6c8889eb1f5b0f08 100644
--- a/net/dns/dns_config_service.cc
+++ b/net/dns/dns_config_service.cc
@@ -64,12 +64,12 @@ std::unique_ptr<base::Value> DnsConfig::ToValue() const {
 
   base::ListValue* list = new base::ListValue();
   for (size_t i = 0; i < nameservers.size(); ++i)
-    list->Append(new base::StringValue(nameservers[i].ToString()));
+    list->AppendString(nameservers[i].ToString());
   dict->Set("nameservers", list);
 
   list = new base::ListValue();
   for (size_t i = 0; i < search.size(); ++i)
-    list->Append(new base::StringValue(search[i]));
+    list->AppendString(search[i]);
   dict->Set("search", list);
 
   dict->SetBoolean("unhandled_options", unhandled_options);