1847327 - [wpt-sync] Sync PR 41348 - [sticky] Keep marking for layout if we've propagated objects.

Status: RESOLVED FIXED

(Core :: Layout: Positioned, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 41348 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/41348
Details from upstream follow.

Ian Kilpatrick <[e-mail]> wrote:

[sticky] Keep marking for layout if we've propagated objects.

Now that we propagate LayoutObjects within the fragment tree - we could
encounter the situation where:

• A subtree becomes display-locked.
• An element is removed (which was propagated - like sticky).
• We re-use a fragment due to a cache hit (contains an invalid
  layout-object).
• Update sticky-constraints == boom.

This patch keeps invalidating the layout-tree for display-locked roots
if we end up in this situtation (which should be sufficiently rare).

Fixed: 1470149
Change-Id: I126ae9cd01892f8c9d137ffd688f51d964005682
Reviewed-on: https://chromium-review.googlesource.com/4753313
WPT-Export-Revision: 151ab9dfda34d22f0a97696c651238859646b89c

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=b64391b57a9ef66248ff233df83756b2fc0b2b5e

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/b3ad86e4a194
[wpt PR 41348] - [sticky] Keep marking for layout if we've propagated objects., a=testonly

Comment 3

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Test result changes from PR not available.

Comment 4

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/b3ad86e4a194