1774653 - [wpt-sync] Sync PR 34470 - May need paint invalidation on cache hit inside fragmentation.

Status: RESOLVED FIXED

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

Description

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

Sync web-platform-tests PR 34470 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/34470
Details from upstream follow.

Morten Stenshorne <[e-mail]> wrote:

May need paint invalidation on cache hit inside fragmentation.

When block-fragmented, LayoutBox stores the location in the flow thread
coordinate space, not the actual visual location. This means that we may
miss location changes, if the flow thread offset remains unchanged (e.g.
if the fragmentainer size changes without needing to re-lay out the
object).

Explicitly mark for paint invalidation when a box that participates in
block fragmentation hits the cache.

Bug: 1336180
Change-Id: I66342c80f2e6cb6478eff6f06d103a9a9c8ecd12
Reviewed-on: https://chromium-review.googlesource.com/3706987
WPT-Export-Revision: 1f9eb12b6e790fc2ed06fa4ec4641793ea1b2ac2

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=1f23880ec27d0359daaa07ff959ec770a393df50

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/7ac5d0bfc4c2
[wpt PR 34470] - May need paint invalidation on cache hit inside fragmentation., a=testonly

Comment 3

[Cristian Tuns]

https://hg.mozilla.org/mozilla-central/rev/7ac5d0bfc4c2