Revert "Delete flaky expectation for external/wpt/cookies/path/match.html"

This reverts commit 389d6f8d.

Reason for revert: still flaky on Windows
https://analysis.chromium.org/p/chromium/flake-portal/flakes/occurrences?key=ag9zfmZpbmRpdC1mb3ItbWVySAsSBUZsYWtlIj1jaHJvbWl1bUBibGlua193ZWJfdGVzdHNAZXh0ZXJuYWwvd3B0L2Nvb2tpZXMvcGF0aC9tYXRjaC5odG1sDA

Original change's description:
> Delete flaky expectation for external/wpt/cookies/path/match.html
> 
> The test does not seem to be flaky recently.
> 
> TBR=smcgruer
> 
> Fixed: 986477
> Change-Id: Ic09e0466315be8d39d7acfe406be5e6bfd29525a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2113511
> Reviewed-by: Robert Ma <robertma@chromium.org>
> Commit-Queue: Robert Ma <robertma@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#752213}

TBR=smcgruer@chromium.org,robertma@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: I13eebe4b4b95843d4dad1ad2706e71f5e599f96e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2115871Reviewed-by: Robert Ma <robertma@chromium.org>
Reviewed-by: Stephen McGruer <smcgruer@chromium.org>
Commit-Queue: Stephen McGruer <smcgruer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#752473}

third_party/blink/web_tests/TestExpectations

@@ -5846,6 +5846,9 @@ crbug.com/985811 [ Win ] http/tests/devtools/elements/edit/edit-dom-actions-2.js
 crbug.com/985869 [ Linux ] http/tests/security/contentSecurityPolicy/object-src-no-url-allowed.html [ Pass Failure ]
 crbug.com/985869 [ Win7 ] http/tests/security/contentSecurityPolicy/object-src-no-url-allowed.html [ Pass Failure ]
 
+# ecosystem-infra sheriff 2019-07-22
+crbug.com/986477 [ Win ] external/wpt/cookies/path/match.html [ Pass Timeout ]
+
 crbug.com/987269 [ Linux ] virtual/audio-service/http/tests/media/autoplay/document-user-activation-cross-origin-feature-policy-disabled.html [ Pass Failure ]
 crbug.com/987269 [ Linux ] virtual/audio-service/http/tests/media/autoplay/document-user-activation-cross-origin-feature-policy-header.html [ Pass Failure ]
 # Sheriff 2019-07-24