chromium/third_party/blink/web_tests/external/wpt/html/semantics/forms/the-button-element/WEB_FEATURES.yml

features:
- name: constraint-validation
  files:
  - button-checkvalidity.html
  - button-setcustomvalidity.html
  - button-validation.html
  - button-validationmessage.html
  - button-validity.html
  - button-willvalidate-readonly-attribute.html
  - button-willvalidate.html