chromium/third_party/blink/web_tests/animations/multiple-keyframes-expected.txt

PASS - "left" property for "box" element at 0.4s saw something close to: 20
PASS - "left" property for "box" element at 1.2s saw something close to: 10
PASS - "left" property for "box" element at 1.6s saw something close to: 15