1368589 - stylo: <img> is sometimes not positioned correctly for top-level image document

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, defect)

Description

[Xidorn Quan [:xidorn] UTC+11]

It causes a somehow permafail for reftest image/test/reftest/jpeg/webcam-simulacrum.mjpg where the 1x1 image is incorrectly positioned at top left in the screenshot of test page.

This seems to be a regression from bug 1357583.

I've discussed about this with emilio on IRC, and he has some initial thought about how this should be fixed.

Comment 1

[Emilio Cobos Álvarez (:emilio)]

Attachment: Bug 1368589: handle the case where a RebuildAllStyleData event is posted and stylesheets are added at the same time.

Review commit: https://reviewboard.mozilla.org/r/144082/diff/#index_header
See other reviews: https://reviewboard.mozilla.org/r/144082/

Comment 2

[Cameron McCormack (:heycam)]

Comment on attachment 8872554 [details]
Bug 1368589: handle the case where a RebuildAllStyleData event is posted and stylesheets are added at the same time.

https://reviewboard.mozilla.org/r/144082/#review147778

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/c6fb400017f1
handle the case where a RebuildAllStyleData event is posted and stylesheets are added at the same time. r=heycam

Comment 4

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/c6fb400017f1