FlTextInputPlugin: fix memory leaks

Author: jpnurmi

shell/platform/linux/fl_text_input_plugin.cc

@@ -184,12 +184,11 @@ static FlMethodResponse* set_client(FlTextInputPlugin* self, FlValue* args) {
   // Clear the multiline flag, then set it only if the field is multiline.
   self->input_multiline = FALSE;
   FlValue* input_type_value =
-      fl_value_lookup(config_value, fl_value_new_string(kTextInputTypeKey));
+      fl_value_lookup_string(config_value, kTextInputTypeKey);
   if (fl_value_get_type(input_type_value) == FL_VALUE_TYPE_MAP) {
-    FlValue* input_type_name = fl_value_lookup(
-        input_type_value, fl_value_new_string(kTextInputTypeNameKey));
-    if (fl_value_equal(input_type_name,
-                       fl_value_new_string(kMultilineInputType))) {
+    FlValue* input_type_name = fl_value_lookup_string(
+        input_type_value, kTextInputTypeNameKey);
+    if (fl_value_equal_string(input_type_name, kMultilineInputType)) {
       self->input_multiline = TRUE;
     }
   }