| <!DOCTYPE html> |
| <title>document preferredStylesheetSet UseCounter</title> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <style> |
| </style> |
| <script> |
| test(function() { |
| const DocumentGetPreferredStylesheetSet = 2211; // From enums.xml |
| assert_false(internals.isUseCounted(document, DocumentGetPreferredStylesheetSet)); |
| document.preferredStylesheetSet; |
| assert_true(internals.isUseCounted(document, DocumentGetPreferredStylesheetSet)); |
| }, 'document.preferredStylesheetSet is use counted'); |
| </script> |