1792217 - Let last remembered size take all fragments into account regardless of dom.resize_observer.support_fragments

Status: RESOLVED FIXED

(Core :: Layout, enhancement)

Description

[Oriol Brufau [:Oriol]]

ResizeObserver only handles multi fragments when dom.resize_observer.support_fragments = true.
That's because the change may have compat problems.
But the last remembered size uses an internal ResizeObserver, so changing the signature of the callback is not a problem.

Comment 1

[Oriol Brufau [:Oriol]]

Attachment: Bug 1792217 - Let last remembered size take all fragments into account regardless of pref. r?emilio

ResizeObserver only handles multiple fragments when the preference
dom.resize_observer.support_fragments is true.
That's because this experimental behavior may have compat problems.

But the last remembered size uses an internal ResizeObserver,
so changing the signature of the callback is not a problem.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/4676713ac808
Let last remembered size take all fragments into account regardless of pref. r=emilio

Comment 3

[Marian-Vasile Laza]

https://hg.mozilla.org/mozilla-central/rev/4676713ac808