chromium/third_party/blink/web_tests/platform/webview/external/wpt/event-timing/idlharness.any-expected.txt

This is a testharness.js-based test.
[FAIL] Performance interface: attribute interactionCount
  assert_true: The prototype object must have a property "interactionCount" expected true got false
[FAIL] Performance interface: performance must inherit property "interactionCount" with the proper type
  assert_inherits: property "interactionCount" not found in prototype chain
Harness: the test ran to completion.