Fix a test expectation

https://crrev.com/c/1504480 marked the wrong (non-virtual) one.

TBR=flackr

Bug: 938780
Change-Id: Ia0e0aed2b53ac8c8e775793667a39ea5db97c6b1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1509096Reviewed-by: Robert Ma <robertma@chromium.org>
Commit-Queue: Robert Ma <robertma@chromium.org>
Cr-Commit-Position: refs/heads/master@{#638757}

third_party/blink/web_tests/TestExpectations

@@ -3036,8 +3036,6 @@ crbug.com/939181 virtual/not-site-per-process/external/wpt/html/browsers/origin/
 # ====== New tests from wpt-importer added here ======
 crbug.com/626703 external/wpt/infrastructure/reftest/reftest_fuzzy.html [ Failure ]
 crbug.com/626703 external/wpt/infrastructure/reftest/reftest_fuzzy_1.html [ Failure ]
-crbug.com/626703 [ Mac10.10 ] virtual/threaded/external/wpt/animation-worklet/worklet-animation-with-scroll-timeline-root-scroller.https.html [ Failure ]
-crbug.com/626703 [ Mac10.11 ] virtual/threaded/external/wpt/animation-worklet/worklet-animation-with-scroll-timeline-root-scroller.https.html [ Failure ]
 crbug.com/626703 external/wpt/screen-orientation/onchange-event.html [ Timeout ]
 crbug.com/626703 external/wpt/html/semantics/forms/the-fieldset-element/accessibility/fieldset-div-display-contents-manual.html [ Skip ]
 crbug.com/626703 external/wpt/html/semantics/forms/the-fieldset-element/accessibility/role-manual.html [ Skip ]
@@ -6020,7 +6018,7 @@ crbug.com/937991 [ Win7 Release ] http/tests/devtools/cache-storage/cache-data.j
 
 # Sheriff 2019-03-05
 crbug.com/938200 http/tests/devtools/network/network-blocked-reason.js [ Timeout Pass ]
-crbug.com/938780 [ Mac ] external/wpt/animation-worklet/worklet-animation-with-scroll-timeline-root-scroller.https.html [ Failure ]
+crbug.com/938780 [ Mac ] virtual/threaded/external/wpt/animation-worklet/worklet-animation-with-scroll-timeline-root-scroller.https.html [ Failure ]
 
 # Sheriff 2019-03-06
 crbug.com/938591 [ Linux ] fast/events/middleClickAutoscroll-nested-divs-forbidden.html [ Failure Pass ]