xss-ALLOWED-parent-navigation-change-async.html timing out on Mac

TBR=nzolghadr@chromium.org
TBR=mustaq@chromium.org
TBR=input-dev@chromium.org
TBR=dom-dev@chromium.org

Bug: 1034789
Change-Id: I80123c55571c5ebf98737101f9be2b1f2a84a75e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1993972Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#730150}

third_party/blink/web_tests/TestExpectations

@@ -7111,7 +7111,7 @@ crbug.com/1034492 http/tests/devtools/unit/filtered-list-widget-providers.js [ P
 crbug.com/1034492 http/tests/devtools/unit/soft-drop-down.js [ Pass Failure ]
 
 # Sheriff 2019-12-17
-crbug.com/1034789 [ Mac10.13 ] http/tests/security/frameNavigation/xss-ALLOWED-parent-navigation-change-async.html [ Pass Timeout ]
+crbug.com/1034789 [ Mac ] http/tests/security/frameNavigation/xss-ALLOWED-parent-navigation-change-async.html [ Pass Timeout ]
 crbug.com/1034789 [ Mac10.13 ] virtual/threaded/fast/scroll-snap/snap-to-target-on-layout-change.html [ Pass Timeout ]
 crbug.com/1034789 [ Mac10.13 ] external/wpt/pointerevents/pointerevent_coalesced_events_attributes.html [ Pass Failure ]
 crbug.com/1034839 css3/filters/effect-reference-image.html [ Pass Failure ]