Disable flaky multicol-under-vertical-rl-scroll.html [chromium/src : main]

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Alison Maher (Gerrit)

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Jan 13, 2026, 2:14:50 PMJan 13
to Sam Davis Omekara, Chromium LUCI CQ, chromium...@chromium.org, AyeAye, blink-...@chromium.org
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File third_party/blink/web_tests/TestExpectations
Line 9706, Patchset 2 (Latest):crbug.com/468760502 external/wpt/css/css-multicol/multicol-under-vertical-rl-scroll.html [ Failure Pass ]
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Sam Davis Omekara (Gerrit)

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Jan 13, 2026, 2:26:42 PMJan 13
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File third_party/blink/web_tests/TestExpectations
Line 9706, Patchset 2 (Latest):crbug.com/468760502 external/wpt/css/css-multicol/multicol-under-vertical-rl-scroll.html [ Failure Pass ]
Sam Davis Omekara

Hmm, I think those tests in that section are tracking a different thing. I vaguely remember the section being introduced when the shift to headless was starting. see: https://issues.chromium.org/issues/390162928

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Alison Maher (Gerrit)

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Jan 13, 2026, 2:32:03 PMJan 13
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File third_party/blink/web_tests/TestExpectations
Line 9706, Patchset 2 (Latest):crbug.com/468760502 external/wpt/css/css-multicol/multicol-under-vertical-rl-scroll.html [ Failure Pass ]
Alison Maher . unresolved

nit: based on the bug title, I might put this one under https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/TestExpectations;l=9300?q=testexpectations&ss=chromium section

Sam Davis Omekara

Hmm, I think those tests in that section are tracking a different thing. I vaguely remember the section being introduced when the shift to headless was starting. see: https://issues.chromium.org/issues/390162928

Alison Maher

Gotcha, if this isn't just headless shell related, I'd suggest maybe updating the bug title to be more generic since it notes it's failing on headless (https://issues.chromium.org/issues/468760502)

And in that case, it could maybe go with this group, which have different sets of bug numbers and doesn't look to be tied to one of the existing comments https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/TestExpectations;l=4816-4820?q=testexpectations&ss=chromium

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Sam Davis Omekara (Gerrit)

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Jan 13, 2026, 2:49:41 PMJan 13
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Sam Davis Omekara voted and added 1 comment

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Commit-Queue+1

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File third_party/blink/web_tests/TestExpectations
Line 9706, Patchset 2:crbug.com/468760502 external/wpt/css/css-multicol/multicol-under-vertical-rl-scroll.html [ Failure Pass ]
Alison Maher . resolved

nit: based on the bug title, I might put this one under https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/TestExpectations;l=9300?q=testexpectations&ss=chromium section

Sam Davis Omekara

Hmm, I think those tests in that section are tracking a different thing. I vaguely remember the section being introduced when the shift to headless was starting. see: https://issues.chromium.org/issues/390162928

Alison Maher

Gotcha, if this isn't just headless shell related, I'd suggest maybe updating the bug title to be more generic since it notes it's failing on headless (https://issues.chromium.org/issues/468760502)

And in that case, it could maybe go with this group, which have different sets of bug numbers and doesn't look to be tied to one of the existing comments https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/TestExpectations;l=4816-4820?q=testexpectations&ss=chromium

Sam Davis Omekara

Done.

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    Sam Davis Omekara (Gerrit)

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    Jan 13, 2026, 2:50:29 PMJan 13
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    Sam Davis Omekara voted Commit-Queue+2

    Commit-Queue+2
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      Chromium LUCI CQ (Gerrit)

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      Jan 13, 2026, 3:54:53 PMJan 13
      to Sam Davis Omekara, Alison Maher, chromium...@chromium.org, AyeAye, blink-...@chromium.org

      Chromium LUCI CQ submitted the change with unreviewed changes

      Unreviewed changes

      2 is the latest approved patch-set.
      The change was submitted with unreviewed changes in the following files:

      ```
      The name of the file: third_party/blink/web_tests/TestExpectations
      Insertions: 1, Deletions: 2.

      @@ -4841,6 +4841,7 @@
      crbug.com/462233640 external/wpt/css/css-page/page-name-unnamed-trailing-001-print.html [ Crash Failure Timeout ]
      crbug.com/1494863 external/wpt/css/css-page/page-name-zero-height-001-print.html [ Failure ]
      crbug.com/346088869 external/wpt/css/css-page/page-size-011-print.html [ Pass Timeout ]
      +crbug.com/468760502 external/wpt/css/css-multicol/multicol-under-vertical-rl-scroll.html [ Failure Pass ]

      # Tests fixed by FragmentedOofInCb:
      virtual/fragmented-oof-in-cb/external/wpt/css/css-break/out-of-flow-in-multicolumn-097.html [ Pass ]
      @@ -9703,8 +9704,6 @@
      crbug.com/451651623 [ Linux ] fast/events/touch/gesture/long-press-on-image-triggers-drag.html [ Failure ]
      crbug.com/451651623 [ Linux ] fast/events/touch/gesture/long-press-on-link-triggers-drag.html [ Failure ]

      -crbug.com/468760502 external/wpt/css/css-multicol/multicol-under-vertical-rl-scroll.html [ Failure Pass ]
      -
      # Gardener 2025-11-04
      crbug.com/457578724 [ Mac12-arm64 ] external/wpt/webxr/xrView_visibility_mask_change.https.html [ Failure Pass ]
      crbug.com/457578724 [ Mac13-arm64 ] external/wpt/webxr/xrView_visibility_mask_change.https.html [ Failure Pass ]
      ```

      Change information

      Commit message:
      Disable flaky multicol-under-vertical-rl-scroll.html

      The multicol-under-vertical-rl-scroll.html test has been flaky recently,
      as identified by the bifrost tool [1]. The test dashboard [2] also
      indicates that similar flakiness occurs on other platforms.

      [1]:https://issues.chromium.org/issues/468760502
      [2]: https://ci.chromium.org/ui/test/chromium/:%2f%2f%5c:headless_shell_wpt!webtest::external%2fwpt%2fcss%2fcss-multicol%23multicol-under-vertical-rl-scroll.html
      Bug: 468760502
      Change-Id: I973cfe01be0f076309a6171967cfb2808ad371ac
      Reviewed-by: Alison Maher <alm...@microsoft.com>
      Commit-Queue: Sam Davis Omekara <samome...@microsoft.com>
      Cr-Commit-Position: refs/heads/main@{#1568651}
      Files:
      • M third_party/blink/web_tests/TestExpectations
      Change size: XS
      Delta: 1 file changed, 1 insertion(+), 0 deletions(-)
      Branch: refs/heads/main
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      • requirement satisfiedCode-Review: +1 by Alison Maher
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      Gerrit-MessageType: merged
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      Gerrit-Change-Number: 7465309
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