1956495 - [wpt-sync] Sync PR 51601 - ContainerTiming: provide painting information from image elements

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, task, P4)

Description

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

Sync web-platform-tests PR 51601 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/51601
Details from upstream follow.

Jose Dapena Paz <[e-mail]> wrote:

ContainerTiming: provide painting information from image elements

Once the infrastructure to record ContainerTiming events is there, we
can sent paint events from the elements. This patch implements that for
the image elements. It shares most of the implementation with
ElementTiming.

This patch adds also the initial set of WPT tests, as once image paint
detection is added, the full flags detection, paint recording and
observing are testable in the web platform.

Explainer: https://github.com/bloomberg/container-timing/blob/main/README.md
Chromestatus: https://chromestatus.com/feature/5110962817073152
I2P: https://groups.google.com/a/chromium.org/g/blink-dev/c/J-WxY0w7bNk/m/VkqnomK-CAAJ

Bug: 382422286
Change-Id: I5c7bb3eb8f19aa8c7ababe81dc7fe247d8fd4a5e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6268797
Reviewed-by: Noam Rosenthal \<[e-mail]>
Commit-Queue: José Dapena Paz \<[e-mail]>
Cr-Commit-Position: refs/heads/main@{#1438049}

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=1de9afc5a5326daf5f772e7a84a4fb7e2c1891c3

Comment 2

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

CI Results

Ran 9 Firefox configurations based on mozilla-central, and Firefox, and Chrome on GitHub CI

Total 7 tests and 1 subtests

Status Summary

Firefox

OK : 7
FAIL : 7

Chrome

OK : 2
PASS : 2
TIMEOUT: 10

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Details

New Tests That Don't Pass

• /container-timing/tentative/containertiming-body-with-child-img.html [wpt.fyi]
  • Body with containertiming observed reports children image paints.: FAIL (Chrome: TIMEOUT)
• /container-timing/tentative/containertiming-img-itself.html [wpt.fyi]
  • Element with containertiming attribute is observable and reports the image paint.: FAIL (Chrome: TIMEOUT)
• /container-timing/tentative/containertiming-observe-no-paint.html [wpt.fyi]
  • Container timing did not report paints when there was nothing to paint.: FAIL (Chrome: PASS)
• /container-timing/tentative/containertiming-two-overlapping-imgs.html [wpt.fyi]
  • Overlapping images report to containertiming.: FAIL (Chrome: TIMEOUT)
• /container-timing/tentative/containertiming-with-child-img.html [wpt.fyi]
  • Paint of the image child of container timing is reported.: FAIL (Chrome: TIMEOUT)
• /container-timing/tentative/img-not-child-of-container-timing.html [wpt.fyi]
  • Containertiming observed without paintable contents and an image outside does not report observations.: FAIL (Chrome: PASS)
• /container-timing/tentative/nested-containertiming-child-img.html [wpt.fyi]
  • A parent containertiming root does not get paints from children containertiming roots.: FAIL (Chrome: TIMEOUT)

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1827c132315e
[wpt PR 51601] - ContainerTiming: provide painting information from image elements, a=testonly
https://hg.mozilla.org/integration/autoland/rev/7856436d76f1
[wpt PR 51601] - Update wpt metadata, a=testonly

Comment 4

[Atila Butkovits]

https://hg.mozilla.org/mozilla-central/rev/1827c132315e
https://hg.mozilla.org/mozilla-central/rev/7856436d76f1