1876657 - [wpt-sync] Sync PR 44214 - Add serializable support for declarative shadow dom

Status: RESOLVED FIXED

(Core :: DOM: Core & HTML, task, P4)

Description

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

Sync web-platform-tests PR 44214 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/44214
Details from upstream follow.

Mason Freed <[e-mail]> wrote:

Add serializable support for declarative shadow dom

This adds the ability to use the serializable attribute on
the \<template shadowrootmode> element, and have the resulting
shadow root have its serializable attribute set. It also makes
serializable shadow roots serialize to a template with a
serializable attribute.

Fixed: 1517959
Change-Id: I64afebc285f355acb0a3a8a401c364188cd2ede4
Reviewed-on: https://chromium-review.googlesource.com/5239221
WPT-Export-Revision: 0f9ddc0bf4058e2126cf106e868566a63df5eed5

Comment 1

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

PR 44214 applied with additional changes from upstream: 632cbee7f0a71696290582679f8a641e45ac6019

Comment 2

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

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=93aea03dfdb872f5a750a6e15d17ba47017db03a

Comment 3

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

Attachment: Notable wpt changes

# CI Results

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

Total 1 tests and 1004 subtests

## Status Summary

### Firefox
`OK`  : 1
`FAIL`: 1004

### Chrome
`OK`  : 1
`FAIL`: 1004

### Safari
`OK`  : 1
`FAIL`: 1004

## Links
[Gecko CI (Treeherder)](https://treeherder.mozilla.org/#/jobs?repo=try&revision=93aea03dfdb872f5a750a6e15d17ba47017db03a)
[GitHub PR Head](https://wpt.fyi/results/?sha=1d04e3771f403d4dc222d9500f253446a1da1bae&label=pr_head)
[GitHub PR Base](https://wpt.fyi/results/?sha=1d04e3771f403d4dc222d9500f253446a1da1bae&label=pr_base)

## Details

(See attachment for full changes)

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1d8f5c35a38a
[wpt PR 44214] - Add serializable support for declarative shadow dom, a=testonly
https://hg.mozilla.org/integration/autoland/rev/b440d4539bdd
[wpt PR 44214] - Update wpt metadata, a=testonly

Comment 5

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/1d8f5c35a38a
https://hg.mozilla.org/mozilla-central/rev/b440d4539bdd