Preserve testing, just disable the pref by default.

Differential Revision: https://phabricator.services.mozilla.com/D136411

This effectively reverts bug 1425788 and bug 1748160, and switches the audioipc-2 vendor source to https://github.com/kinetiknz/audioipc/commits/macos_v97b.

Differential Revision: https://phabricator.services.mozilla.com/D136550

Differential Revision: https://phabricator.services.mozilla.com/D136281

Bug 1748640 - Revert behavior change from bug 1737831 on notch-less macbooks, and add a pref to control this behavior. r=bradwerth, a=RyanVM

Differential Revision: https://phabricator.services.mozilla.com/D135651

Backed out changeset 1bcc96832309 (bug 1747261) for causing mochitest-devtools failures on browser_dbg-windowless-service-workers.js. CLOSED TREE

WIP: Bug 1747261: enable ServiceWorker process-isolation for all domains r=dom-storage-reviewers,edenchuang,jstutte

Differential Revision: https://phabricator.services.mozilla.com/D134505

Bug 1746711 Part 3: Log property keys of video surfaces, buffers, and formats. r=gfx-reviewers,mstange

This will help determine if the surfaces we get from DRM video are different
from the ones we get from non-DRM video.

Differential Revision: https://phabricator.services.mozilla.com/D135170

All of the IOSurfaces that come from AppleVTDecoder should have a color space
specified. This checks that the color space is still defined for any surface
sent to EnqueueSurface.

Differential Revision: https://phabricator.services.mozilla.com/D135089

Bug 1746711 Part 1: Change method of presenting recreated samples to spoof timing. r=gfx-reviewers,mstange

This change removes the usage of kCMSampleAttachmentKey_DisplayImmediately and
instead spoofs a timestamp for the current time.

Differential Revision: https://phabricator.services.mozilla.com/D134981

Backed out changeset b39b99edef97 (bug 1745248)
Backed out changeset b09a96820c2c (bug 1745248)
Backed out changeset 03dd6cedf996 (bug 1745248)

Differential Revision: https://phabricator.services.mozilla.com/D134699

Backed out changeset 76ca93f4a831 (bug 1747261) for causing mochitest failures on browser_serviceworker_fetch_new_process.js CLOSED TREE

WIP: Bug 1747261: enable ServiceWorker process-isolation for all domains r=dom-storage-reviewers,edenchuang,jstutte

Differential Revision: https://phabricator.services.mozilla.com/D134505

Bug 1630569 - Change the limit at which audio is muted with high or low playback rates, and make it and other parameters configurable via prefs. r=alwu

Differential Revision: https://phabricator.services.mozilla.com/D135066

This allows to test and enable the different portals separately. Make
the print portal work only when actually running under flatpak by
default, given it needs more work as per the regressing bug.

And while at it fix a minor leak and some typos in that code.

Differential Revision: https://phabricator.services.mozilla.com/D135120

Differential Revision: https://phabricator.services.mozilla.com/D135076

It's been enabled by default since ~forever.

Differential Revision: https://phabricator.services.mozilla.com/D134935

Differential Revision: https://phabricator.services.mozilla.com/D131857

Backed out changeset 3b51e6804554 (bug 1747261) for causing xpcshell failures on test_E10SUtils_workers_remote_types.js. CLOSED TREE

Bug 1747261: enable ServiceWorker process-isolation for all domains r=dom-storage-reviewers,edenchuang

Differential Revision: https://phabricator.services.mozilla.com/D134505

Also remove a couple of unused/obsolete preferences.

Differential Revision: https://phabricator.services.mozilla.com/D134509

Differential Revision: https://phabricator.services.mozilla.com/D134929

Bug 1747952 - Include discovered/network printers in the CUPS list, with a timeout. r=emilio,decoder

The timeout is configurable via the pref print.cups.enum_dests_timeout_ms.

Differential Revision: https://phabricator.services.mozilla.com/D134844

There are a number of pretty bad regressions caused by specializing
video (bug 1747999, bug 1738926, bug 1746711). It seems like it's better
to disable until we better understand the causes and scope of the
regressions.

Differential Revision: https://phabricator.services.mozilla.com/D134947

Differential Revision: https://phabricator.services.mozilla.com/D134937

Differential Revision: https://phabricator.services.mozilla.com/D134804

Bug 1747326 - Enable the fix for bug 1743339 and bug 1743346 by default in the Beta/Release channels too r=smaug

They are enabled only in the Nightly channel, and bug 1744580 is the only one
regression report for them.  Therefore, I think that it's fine to enable them.

Differential Revision: https://phabricator.services.mozilla.com/D134578

Backed out changeset d69272c85ef1 (bug 1747952) for causing mochitest failures(leak at cupsArrayNew3) CLOSED TREE

The timeout is configurable via the pref print.cups.enum_dests_timeout_ms.

Differential Revision: https://phabricator.services.mozilla.com/D134844

With bug 1743926 apparently done, bug 1744777 so far appears to be the only
reason not to ship to release. Given that bug 1744777 likely also applies
to VP9, that's probably acceptable. On the pro-side are better sandboxing
and easy to enable VAAPI decoding.
So let's ship.

Differential Revision: https://phabricator.services.mozilla.com/D134890

Backed out changeset e2dd2ff842fa (bug 1745869)
Backed out changeset 0d2bf1bbda4f (bug 1745869)

Bug 1747913 - turn on platform encoder and software fallback pref on all supported platforms. r=alwu

Differential Revision: https://phabricator.services.mozilla.com/D134785

Differential Revision: https://phabricator.services.mozilla.com/D134804

The timeout is configurable via the pref print.cups_enum_dests_timeout_ms.

Differential Revision: https://phabricator.services.mozilla.com/D134844

Differential Revision: https://phabricator.services.mozilla.com/D133980

Add a pref to force the small scrollbar even in
non-overlay-scrollbars mode (which is the current behavior).

Differential Revision: https://phabricator.services.mozilla.com/D134683

Bug 1746951 - Remove no-longer-needed workaround for native menus in dark mode. r=mstange,mac-reviewers

All this was introduced to make native context menus dark if necessary when
widget.macos.respect-system-appearance was false by default in bug 1704102, but
we have since enabled it and removed the preference so this is no longer
needed.

Differential Revision: https://phabricator.services.mozilla.com/D134333