Drive-by changes:
- Use `needsPrototypeProperty()` in `fun_enumerate`, because it's more
  efficient and more closely follows `fun_resolve`.
- Remove unused function `fromShapeFieldPointer()`.

Differential Revision: https://phabricator.services.mozilla.com/D155838

Bug 1784244 - do not surface sync errors in Firefox View if we previously synced successfully, r=sfoster

Differential Revision: https://phabricator.services.mozilla.com/D155845

Bug 1786465 - Introduce FileSystemManager intended to be referenced by FileSystemHandle; r=dom-storage-reviewers,jesup

This patch also splits the creation of the top level protocol and getting the
root handle into separate logical steps.

Differential Revision: https://phabricator.services.mozilla.com/D155350

This has been added many years ago when introducing side hosts.
We should now consider this a builtin feature.

Differential Revision: https://phabricator.services.mozilla.com/D155392

ar -> e147b5263af57e873edadeb2bf5a3f4d8d2b8ea9
hi-IN -> a819112781d03d71928892ecbde249b896e261a5
hsb -> 7912e365c809d3f27179cd7e25622819d78db256
nb-NO -> 42def68deae9b735225ffea30ee7b7c3d136dbdc
sat -> d2ce5f9aab7d15ed300b778cf305663a54d651ce

Bug 1787953 - Update the value of the epsilon used in SampledAPZCState::RemoveFractionalAsyncDelta() to 0.01 as well. r=tnikkel

This epsilon was split off from COORDINATE_EPSILON in bug 1787099,
but the original value used here (before bug 1659642) was 0.01
as well.

Depends on D155904

Differential Revision: https://phabricator.services.mozilla.com/D155905

The previous change to 0.02 appears to have been unintentional,
and the value should be less than 1 app unit (1/60 of a pixel).

Differential Revision: https://phabricator.services.mozilla.com/D155904

Bug 1704978 - Prevent opening context menu in the case the user did right click in the overscroll gutter on Windows. r=botond,handyman

Differential Revision: https://phabricator.services.mozilla.com/D155039

The comment about NS_IF_RELEASE() is now useless since there's no
NS_IF_RELEASE() call.

Differential Revision: https://phabricator.services.mozilla.com/D155038

Bug 1787964: Improve content-based-sizing and vertical centering of Firefox View's "Last Active" badge. r=Gijs

Differential Revision: https://phabricator.services.mozilla.com/D155917

This is a first basic implementation that we might extend in the future
(for example by adding a way to select the container node when clicking
on the container name).

A test is added to ensure we display container queries as expected, even
when dealing with unknown containers, or with nested layer/media/container rules.

Depends on D155602

Differential Revision: https://phabricator.services.mozilla.com/D155469

Bug 1787386 - The arrow from the “Skip this step” button has a black color when the browser's dark theme is enabled r=emcminn

Differential Revision: https://phabricator.services.mozilla.com/D155744

Differential Revision: https://phabricator.services.mozilla.com/D155646

This patch is the result of `mach esmify --convert toolkit/mozapps/extensions/internal/GMPProvider.jsm`.
Callsites were fixed manually, as well as occasional references in comments.

Differential Revision: https://phabricator.services.mozilla.com/D155832

There were cases that the function was called when CompositorThreadHolder was not active

Differential Revision: https://phabricator.services.mozilla.com/D155929

Backed out changeset c0865c4d8f2f (bug 1787290) for causing xpc failures in backgroundtasks/tests/xpcshell/test_backgroundtask_targeting.js CLOSED TREE

Differential Revision: https://phabricator.services.mozilla.com/D155795

Bug 1787621 - Fix contrast on the about:addons Available Updates count badge, when in dark mode r=sfoster

Differential Revision: https://phabricator.services.mozilla.com/D155784

Depends on D154851

Differential Revision: https://phabricator.services.mozilla.com/D155305

Historically, we had configure.in in the tree, and generated configure
with autoconf via client.mk at build time, and we'd run that configure.
As a side effect, configure would be shipped in source tarballs, as with
traditional autoconf-driven software.

Bug 1671424 changed that, and made `mach build`/`mach configure` invoke
configure.py directly, without needing configure. As a side effect,
configure stopped being generated in source directories. An unexpected
side effect was that configure stopped being shipped in source tarballs.

Anyways, it has been long enough now that adding a configure file in the
tree shouldn't cause too many problems with people updating their trees
where a configure file might exist from those older builds.

Differential Revision: https://phabricator.services.mozilla.com/D155923

Differential Revision: https://phabricator.services.mozilla.com/D155646

Differential Revision: https://phabricator.services.mozilla.com/D155287

Windows a11y clients retrieve MathML markup using ISimpleDOMNode::innerHTML.
We cache innerHTML to support this, but only on math elements and only on Windows.
sdnAccessible had to be modified to support RemoteAccessible and to use the cache for this method.

Differential Revision: https://phabricator.services.mozilla.com/D155806

Bug 1787686: Expose the URL of a link as its value, as well as the value of text/image leaf descendants. r=morgan

Differential Revision: https://phabricator.services.mozilla.com/D155810

Differential Revision: https://phabricator.services.mozilla.com/D155774

Bug 1787321 - convert nsAHttpConnection::GetSecurityInfo into ::GetTLSSocketControl r=kershaw,necko-reviewers

This continues work started in bug 1784098.

Differential Revision: https://phabricator.services.mozilla.com/D155625

Bug 1787525 - Remove unneeded Wno-error=coverage-mismatch suppression. r=firefox-build-system-reviewers,ahochheiden

Depends on D155738

Differential Revision: https://phabricator.services.mozilla.com/D155739

Bug 1787525 - Remove unneeded Wno-gnu-zero-variadic-macro-arguments suppression. r=firefox-build-system-reviewers,ahochheiden

Depends on D155737

Differential Revision: https://phabricator.services.mozilla.com/D155738

Bug 1787525 - Remove unneeded Wno-error=backend-plugin suppression. r=firefox-build-system-reviewers,ahochheiden

Depends on D155736

Differential Revision: https://phabricator.services.mozilla.com/D155737

Bug 1787525 - Remove unneeded Wno-error=return-std-move suppression. r=firefox-build-system-reviewers,ahochheiden

Depends on D155735

Differential Revision: https://phabricator.services.mozilla.com/D155736

Bug 1787525 - Remove unneeded Wno-error=deprecated-copy suppression. r=firefox-build-system-reviewers,ahochheiden

Depends on D155734

Differential Revision: https://phabricator.services.mozilla.com/D155735

Bug 1787525 - Remove unnecessary non-literal-null-conversion Werror setting. r=firefox-build-system-reviewers,ahochheiden

It's enabled by default and our modern clang toolchain works fine
with it on all platforms.

Differential Revision: https://phabricator.services.mozilla.com/D155734

Differential Revision: https://phabricator.services.mozilla.com/D155762

Bug 1787402 - explicitly reject the type if the process doesn't support that specific track before receving the support information from remote processes. r=azebrowski

We determine if a type is supported by checking the support information sent from remote processes.

If we haven't received that infermation, what we did before is, simply guess the remote process supports that type, and then try to create a real decoder in the remote process if possible.

However, as now we restrict certain processes can only support certain tracks. We can do that check earlier to eliminate an impossible case. Eg. requesting a video decoder to a process which only supports audio decoding.

Differential Revision: https://phabricator.services.mozilla.com/D155747

Backed out 2 changesets (bug 1775424) for causing linux hazard build bustage in js/loader/ModuleLoaderBase.cpp CLOSED TREE

Backed out changeset a043a84a771c (bug 1775424)
Backed out changeset 19bc4fafd300 (bug 1775424)

Backed out changeset 1c2af90126ee (bug 1787321) for causing bp-hybrid build bustages in netwerk/base/ARefBase.h CLOSED TREE

Bug 1787321 - convert nsAHttpConnection::GetSecurityInfo into ::GetTLSSocketControl r=kershaw,necko-reviewers

This continues work started in bug 1784098.

Differential Revision: https://phabricator.services.mozilla.com/D155625

Backed out changeset 225b8bbe0912 (bug 1786647) for causing browser-chrome failures in toolkit/components/messaging-system/schemas/TriggerActionSchemas/test/browser/browser_asrouter_trigger_docs.js CLOSED TREE

Backed out changeset bb1d2a4a5570 (bug 1786525) for causing build bustages in xpfe/appshell/AppWindow.cpp CLOSED TREE