Mark acid3/numbered-tests.html as skip

The test is missing expectations. 'Failure' doesn't suppress it amd 'Missing' isn't allowed.

TBR=foolip@chromium.org
NOTRY=true

Bug: 805463
Change-Id: I0aad9cd95f47ee3c5c967d817711330ed4c68761
Reviewed-on: https://chromium-review.googlesource.com/887061Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#531914}

third_party/WebKit/LayoutTests/TestExpectations

@@ -1755,7 +1755,7 @@ crbug.com/803200 external/wpt/websockets/opening-handshake/005.html?wss [ Pass F
 # DCHECK failure.
 crbug.com/805061 external/wpt/custom-elements/upgrading/Node-cloneNode.html [ Crash ]
 
-crbug.com/805463 external/wpt/acid/acid3/numbered-tests.html [ Pass Failure ]
+crbug.com/805463 external/wpt/acid/acid3/numbered-tests.html [ Skip ]
 
 # ====== New tests from wpt-importer added here ======
 crbug.com/626703 external/wpt/css/css-display/display-contents-fieldset-nested-legend.html [ Failure ]