Disable flaky external/wpt/editing/run/delete.html?2001-3000

NOTRY=true
TBR=yosin@chromium.org

BUG: 877300
Change-Id: If8e8cc5af93f55e9a848d46fa6e1196990d62081
Reviewed-on: https://chromium-review.googlesource.com/1187845
Commit-Queue: Hayato Ito <hayato@chromium.org>
Reviewed-by: Hayato Ito <hayato@chromium.org>
Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#585749}

third_party/WebKit/LayoutTests/TestExpectations

@@ -2737,7 +2737,7 @@ crbug.com/626703 external/wpt/quirks/text-decoration-doesnt-propagate-into-table
 crbug.com/626703 external/wpt/html/rendering/non-replaced-elements/the-fieldset-element-0/fieldset-transform-translatez.html [ Failure ]
 crbug.com/626703 external/wpt/html/rendering/non-replaced-elements/the-fieldset-element-0/fieldset-overflow-hidden.html [ Failure ]
 crbug.com/626703 [ Mac10.12 ] external/wpt/webxr/xrSession_requestAnimationFrame_getDevicePose.https.html [ Failure Timeout ]
-crbug.com/626703 [ Mac10.10 ] external/wpt/editing/run/delete.html?2001-3000 [ Failure Timeout ]
+crbug.com/877300 external/wpt/editing/run/delete.html?2001-3000 [ Timeout Pass ]
 crbug.com/626703 external/wpt/payment-request/payment-response/onpayerdetailchange-attribute.manual.https.html [ Timeout ]
 crbug.com/626703 external/wpt/html/rendering/non-replaced-elements/the-fieldset-element-0/fieldset-painting-order.html [ Failure ]
 crbug.com/626703 external/wpt/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/tasks.window.html [ Timeout ]