Intermittent FAIL in /resource-timing/buffer-full-then-increased.html /resource-timing/buffer-full-when-populate-entries.html #44408

  ▶ OK /resource-timing/buffer-full-then-increased.html
  │   ▶ FAIL [expected PASS] Test that overflowing the buffer and immediately increasing its limit does not trigger the resourcetimingbufferfull event
  │   │   → assert_equals: Number of entries does not match the expected value. expected 3 but got 1
  │   │ 
  │   │ checkEntries@http://web-platform.test:8000/resource-timing/resources/buffer-full-utilities.js:53:16
  │   │ @http://web-platform.test:8000/resource-timing/buffer-full-then-increased.html:24:17
  │   │ async*Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
  │   │ promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
  └   └ promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20

  ▶ OK /resource-timing/buffer-full-when-populate-entries.html
  │   ▶ FAIL [expected PASS] Test that a buffer full event does not bubble and that resourcetimingbufferfull is called only once per overflow
  │   │   → assert_equals: onresourcetimingbufferfull should have been invoked once. expected 1 but got 0
  │   │ 
  │   │ @http://web-platform.test:8000/resource-timing/buffer-full-when-populate-entries.html:26:18
  │   │ async*Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
  │   │ promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
  └   └ promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20