[sheriff] Expect failure for...

[sheriff] Expect failure for external/wpt/fullscreen/api/element-request-fullscreen-and-move-to-iframe-manual.html on Mac

TBR=fdoray@chromium.org

No-Try: true
Bug: 1007228
Change-Id: I45cb0b1f0ede2d4659690f98fc6e6d0a0c6d066c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2229060
Commit-Queue: François Doray <fdoray@chromium.org>
Reviewed-by: François Doray <fdoray@chromium.org>
Cr-Commit-Position: refs/heads/master@{#774616}

third_party/blink/web_tests/TestExpectations

@@ -5906,7 +5906,7 @@ crbug.com/1088007 virtual/gpu/fast/canvas/OffscreenCanvasClearRectPartial.html [
 crbug.com/1088007 virtual/gpu/fast/canvas/OffscreenCanvas-MessageChannel-transfer.html [ Pass Failure ]
 
 # Sheriff 2020-06-03
-crbug.com/1007228 [ Mac10.13 ] external/wpt/fullscreen/api/element-request-fullscreen-and-move-to-iframe-manual.html [ Pass Failure ]
+crbug.com/1007228 [ Mac ] external/wpt/fullscreen/api/element-request-fullscreen-and-move-to-iframe-manual.html [ Pass Failure ]
 
 # Disabled for landing DevTools change
 crbug.com/1011811 http/tests/devtools/persistence/automapping-sourcemap.js [ Pass Failure ]