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Avoid calling AssignedSlot() on pseudo-elements #27767

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merged 1 commit into from Feb 25, 2021

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@chromium-wpt-export-bot chromium-wpt-export-bot commented Feb 24, 2021

The repro from [1] causes a scrollevent to be fired on a pseudo-element
inside a shadow tree, which caused a DCHECK at [2]. This CL avoids
that path.

[1] https://bugs.chromium.org/p/chromium/issues/detail?id=1180286#c5

Fixed: 1180286
Change-Id: I28f95d2fa5ad74da9a402a4409f972bab04aec6a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2718566
Auto-Submit: Mason Freed <masonfreed@chromium.org>
Commit-Queue: Joey Arhar <jarhar@chromium.org>
Reviewed-by: Joey Arhar <jarhar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#857711}

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The review process for this patch is being conducted in the Chromium project.

The repro from [1] causes a scrollevent to be fired on a pseudo-element
inside a shadow tree, which caused a DCHECK at [2]. This CL avoids
that path.

[1] https://bugs.chromium.org/p/chromium/issues/detail?id=1180286#c5

Fixed: 1180286
Change-Id: I28f95d2fa5ad74da9a402a4409f972bab04aec6a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2718566
Auto-Submit: Mason Freed <masonfreed@chromium.org>
Commit-Queue: Joey Arhar <jarhar@chromium.org>
Reviewed-by: Joey Arhar <jarhar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#857711}
@chromium-wpt-export-bot chromium-wpt-export-bot force-pushed the chromium-export-cl-2718566 branch from a70053d to 755f432 Feb 25, 2021
@chromium-wpt-export-bot chromium-wpt-export-bot merged commit cb2fcc9 into master Feb 25, 2021
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@chromium-wpt-export-bot chromium-wpt-export-bot deleted the chromium-export-cl-2718566 branch Feb 25, 2021
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