1564654 - [wpt-sync] Sync PR 17533 - [PW] Fix paint worklet canvas clip bound calculation

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 17533 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/17533
Details from upstream follow.

Xida Chen <[e-mail]> wrote:

[PW] Fix paint worklet canvas clip bound calculation

Right now when we initialize the paint canvas for paint worklet with a
scale factor or browser zoom, we do not record the zoom factor in the
canvas transform. As a result, when computing the clip bound we will
apply the wrong transformation matrix and thus sometimes the contents
can be completely clipped out while it should not.

This CL fixes the problem and adds a layout test.

Bug: 970783
Change-Id: Ie3709ea5845ca2b405245d4b36f9fe8f99052bad
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1678287
Reviewed-by: Stephen McGruer \<[e-mail]>
Commit-Queue: Xida Chen \<[e-mail]>
Cr-Commit-Position: refs/heads/master@{#672722}

Comment 1

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

Pushed to try https://treeherder.mozilla.org/#/jobs?repo=try&revision=535beaf4e941dd5bf3eba4e404d059dea4437b29

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=0f4d9c17f864be50a3f656808ca594e1c47d72f8

Comment 3

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

Failed to get results from try push

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/f0713e2e434e
[wpt PR 17533] - [PW] Fix paint worklet canvas clip bound calculation, a=testonly
https://hg.mozilla.org/integration/mozilla-inbound/rev/e3ac966b5768
[wpt PR 17533] - Update wpt metadata, a=testonly

Comment 5

[Razvan Maries]

https://hg.mozilla.org/mozilla-central/rev/f0713e2e434e
https://hg.mozilla.org/mozilla-central/rev/e3ac966b5768