1710035 - [wpt-sync] Sync PR 28893 - Update compositing inputs when a child is added to empty layer

Status: RESOLVED FIXED

(Core :: Web Painting, task, P4)

Description

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

Sync web-platform-tests PR 28893 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/28893
Details from upstream follow.

b'Wanchang Ryu <[e-mail]>' wrote:

Update compositing inputs when a child is added to empty layer

When a html element is added to the empty layer it doesn't update
compositing inputs and it failed to update |draws_content_| of
|GraphicsLayer| therefore it is skipped for painting since
|draw_contents| is remained as false.

This patch compares between current and previous
|ContainsPaintedContent| then update compositing inputs if changed.

Change-Id: I64de5629db24304517b67913b1ba61873a4ae54b
Reviewed-on: https://chromium-review.googlesource.com/2866707
WPT-Export-Revision: 63782253ebe034a1e86fdfd3a990c26672e2500e

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=45da6042df4c0c780552afd6eec511b300ee71cb

Comment 2

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

CI Results

Ran 15 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 1 tests

Status Summary

Firefox

PASS: 1

Chrome

FAIL: 1

Safari

PASS: 1

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/bbc5f8181f2e
[wpt PR 28893] - Add a test case for adding a layer into empty composited layer, a=testonly

Comment 4

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/bbc5f8181f2e