Differential Revision: https://phabricator.services.mozilla.com/D174042

This revision adds logic to BoundsWithOffset to ensure that bounds, when
calculated for hit testing, are constrained to the scroll areas that contain
them. This ensures that we don't return an Accessible that's covered by another
element when hit testing due to overflow: scroll situations.

This revision also contains a fix for transforms and scroll: we now apply
scroll before any transform, since transforms operate on scrolled content.

This revision contains tests for both of the above changes.

Differential Revision: https://phabricator.services.mozilla.com/D173392

Differential Revision: https://phabricator.services.mozilla.com/D173862

Differential Revision: https://phabricator.services.mozilla.com/D174013

Bug 1824490 - Use the end page value rather than the start page value of the previous frame when performing named-page breakpoints r=dholbert

Adding the test from this bug so that this can't happen next time.

Differential Revision: https://phabricator.services.mozilla.com/D174037

Depends on D173888

Differential Revision: https://phabricator.services.mozilla.com/D173987

Depends on D173873

Differential Revision: https://phabricator.services.mozilla.com/D173888

Depends on D173550

Differential Revision: https://phabricator.services.mozilla.com/D173873

Depends on D173788

Differential Revision: https://phabricator.services.mozilla.com/D173550

Differential Revision: https://phabricator.services.mozilla.com/D173788

Differential Revision: https://phabricator.services.mozilla.com/D173864

Bug 1813716 - Encapsulate aboutwelcome container and make its ID more unique. r=omc-reviewers,fxview-reviewers,sfoster,jprickett

Differential Revision: https://phabricator.services.mozilla.com/D172493

Bug 1825415 - Update GMP fallback downloader for OpenH264 1.8.1.2. r=media-playback-reviewers,azebrowski

We never updated the fallback for 1.8.1.2, which was a false version
bump to update the binaries for OSX. This patch updates the URLs, file
sizes and hashes for the fallback path.

Differential Revision: https://phabricator.services.mozilla.com/D174034

Bug 1824957 - Remove a bunch of now completely dead XUL layout code. r=layout-reviewers,desktop-theme-reviewers,devtools-reviewers,dao,TYLin

And some related tests.

A bunch of -moz-box* properties are web exposed, so I'll file a
follow-up for hiding them.

Differential Revision: https://phabricator.services.mozilla.com/D173819

As evidenced by a [recent Try push](https://treeherder.mozilla.org/jobs?repo=try&revision=7e1b556bed392abe2ba3bf7e461259421e44a728&selectedTaskRun=eDGDIk81RH6Yyz2-W8vAhg.0), my [workaround solution](https://phabricator.services.mozilla.com/D173484) for [bug 1824042](https://bugzilla.mozilla.org/show_bug.cgi?id=1824042) was wrong for a couple of reasons:

1. `os == "windows"` aggravatingly works for me locally, but _not_ in CI.
2. Squashing the crashes in the offending tests noted in the original workaround solution merely moved the crashing behavior's effects to other tests.

I think it's safe to say that we have a more complicated issue than a single reftest here. So...let's just disable these reftests on ~~`windows`~~ `win` for now.

Differential Revision: https://phabricator.services.mozilla.com/D173910

This devtools test was assuming the color-mix flag is enabled, which it
is on nightly, but not on beta/release, so checking the flag during the
test.

Differential Revision: https://phabricator.services.mozilla.com/D173876

Bug 1821448: Improve handling of reentry in MsaaAccessible::VisitDocAccessibleParentDescendantsAtTopLevelInContentProcess. r=nlapre

Differential Revision: https://phabricator.services.mozilla.com/D173652

The `about:support` page formatter for graphics information takes a JavaScript object (the `graphics` property of the snapshot returned by `Troubleshoot.snapshot`), and builds HTML covering each property of the object. It deletes properties as it goes, and at the end, any remaining properties get dumped into a "diagnostics" section.

Fix the WebGPU adapter reporting code to delete the properties it reports, so that they don't end up generating stray rows in the diagnostics section.

Differential Revision: https://phabricator.services.mozilla.com/D173751

Differential Revision: https://phabricator.services.mozilla.com/D173959

Bug 1822416 - Upgrade typed_ast package to 1.5.4 to fix compilation errors running ./mach lint with Python 3.11 r=sylvestre

Please see comments in bug report for more details. I'm unfamiliar with this part of the codebase / typed_ast, so hopefully somebody with more experience can take a look at this.

Differential Revision: https://phabricator.services.mozilla.com/D172611

Backed out 2 changesets (bug 1746245, bug 1824447) for xpcshell failure on test_FeatureGate.js . CLOSED TREE

Backed out changeset 5cc2daf4f55a (bug 1746245)
Backed out changeset 754743cbc36b (bug 1824447)

de -> 8b4f44c1036f1ff7be177dbaa09504f3e05a519c
hsb -> e10e1c561e9e7173034ee140d1d65248a0db46ba
oc -> b3cfc5fd4dae8975286dacdd1bebdbee1c451d3a
skr -> 5828ceaeb70a1c54671a2cfe669c217db1eb989b

The spacers are unnecessary if there's a <label> or <description> that
flexes.

Since we allow labels/descriptions to shrink now they'd distribute the
space along with the spacer, which caused unnecessarily small labels.

Differential Revision: https://phabricator.services.mozilla.com/D173937

Bug 1811000 - [devtools] Move the project search to the side panel r=devtools-reviewers,nchevobbe,perftest-reviewers,sparky

Differential Revision: https://phabricator.services.mozilla.com/D172985

Differential Revision: https://phabricator.services.mozilla.com/D174001

Differential Revision: https://phabricator.services.mozilla.com/D173926

Bug 1801981 - Use the word "favorites" instead of "bookmarks" when importing from IE / Edge. r=niklas,fluent-reviewers,flod

Differential Revision: https://phabricator.services.mozilla.com/D173567

Differential Revision: https://phabricator.services.mozilla.com/D173369

Differential Revision: https://phabricator.services.mozilla.com/D173894

Differential Revision: https://phabricator.services.mozilla.com/D167106

Differential Revision: https://phabricator.services.mozilla.com/D173571

Differential Revision: https://phabricator.services.mozilla.com/D173994

Differential Revision: https://phabricator.services.mozilla.com/D173979

oak was reset and moved to level2 in bug 1819778 so it shouldn't use prod
signing now.

Differential Revision: https://phabricator.services.mozilla.com/D173977

Bug 1820268 - make nsI{Input,Output}Stream::Close() idempotent  r=xpcom-reviewers,nika,necko-reviewers,valentin

The `nsIAsync{Input,Output}Stream` base classes' Close() methods are
already documented to be idempotent. Do the same for their synchronous
counterparts, and make the necessary changes to ensure this.

The only known functional change here (modulo the removal of some
uninteresting logging) is to `nsFileInputStream`, which now avoids
calling `Tell()` if the stream is already closed. (The other early-exits
added here are formally redundant, but neither obviously nor robustly
so.)

This silences some console warning spam when running a debug build from
the command line.

Differential Revision: https://phabricator.services.mozilla.com/D171615

Change the default value of `dom.webgpu.enabled` from `false` to `true` in Nightly builds.

Everything in `dom/webidl/WebGPU.webidl` that is `Exposed=(Window)` is also gated on the `dom.webgpu.enabled` pref, so it should not appear on `window` in beta or release builds.

Beyond that, WebGPU is not usable in beta or release builds regardless of the pref setting, because of these lines of code in `dom/webgpu/Instance.cpp`:

    #ifdef RELEASE_OR_BETA
        if (true) {
          return "WebGPU is not yet available in Release or Beta builds.";
        }
    #endif

This function is the only way to create a `GPUAdapter`, which is the only way to access any interesting parts of the WebGPU API.

The mochitest `dom/webgpu/mochitest/test_disabled.html` checks that the value of the `dom.webgpu.enabled` pref is `false`. This is now only appropriate in beta and release builds, so change `dom/webgpu/mochitest/mochitest-no-pref.ini` accordingly.

Differential Revision: https://phabricator.services.mozilla.com/D173475

Bug 1824447: Make WebGPU interfaces available only in secure contexts. r=webgpu-reviewers,webidl,saschanaz,jgilbert

Add the [`[SecureContext]`](https://webidl.spec.whatwg.org/#SecureContext) extended attribute to all interfaces in `dom/webidl/WebGPU.webidl` and `dom/webidl/GPUUncapturedErrorEvent.webidl`, to match the specification.

Update mochitests to run in secure contexts.

It's standard practice now for newly introduced content-visible web APIs to be available only in secure contexts, to encourage the adoption of https. WebGPU's API was marked in this way in gpuweb#1363. Firefox's WebIDL needs to be updated to match.

Differential Revision: https://phabricator.services.mozilla.com/D173584

Differential Revision: https://phabricator.services.mozilla.com/D173941

Differential Revision: https://phabricator.services.mozilla.com/D173566

Differential Revision: https://phabricator.services.mozilla.com/D173565