Intermittent failure in /css-transforms-1_dev/html/perspective-origin-001.htm and perspective-origin-002.htm and perspective-origin-005.htm

[nox]

  ▶ FAIL [expected PASS] /css-transforms-1_dev/html/perspective-origin-005.htm
  └   → /css-transforms-1_dev/html/perspective-origin-005.htm 719003ff0f2c5efe0b678a757a454870ca362e2c
/css-transforms-1_dev/html/reference/ref-filled-green-100px-square.htm d4aa213e3e31e41d0d8e84aec79e94f860f27178
Testing 719003ff0f2c5efe0b678a757a454870ca362e2c == d4aa213e3e31e41d0d8e84aec79e94f860f27178

  ▶ FAIL [expected PASS] /css-transforms-1_dev/html/perspective-origin-001.htm
  └   → /css-transforms-1_dev/html/perspective-origin-001.htm 719003ff0f2c5efe0b678a757a454870ca362e2c
/css-transforms-1_dev/html/reference/ref-filled-green-100px-square.htm d4aa213e3e31e41d0d8e84aec79e94f860f27178
Testing 719003ff0f2c5efe0b678a757a454870ca362e2c == d4aa213e3e31e41d0d8e84aec79e94f860f27178

[emilio]

Today I also saw the 003 and 004, fwiw. But I think we should unify these into #10881.

[emilio]

Whoops, wrong bug, #9087

[nox]

Disabled in #12942.

[jdm]

Test files don't exist any more.