Backed out changeset 931737b7c12c (bug 1794661) for causing newtab failures on aboutwelcome.scss. CLOSED TREE

If we get via OnFrameChanging, we compute a new sizemode, but never store it on
the widget, yet we notify that it has changed.

We were relying on a call to mWindow->SetSizeMode from the widget delegate
which I removed in:

  https://hg.mozilla.org/integration/autoland/rev/c9785cd100fcea9e82623457efb09b54619053be

Instead, call EnsureSizeMode to make sure we already have the right sizemode
when notifying our listener.

Differential Revision: https://phabricator.services.mozilla.com/D160365

Ensure that when we evaluate the downloadable blocklist, we actually
only use the downloadable blocklist. We should not include any platform
specific checks in these prefs, as it causes confusion about why the
prefs were set in the first place. Allowlisted features should be
ignored when evaluating the downloadable blocklist; if we wish to
override the ALLOW/ALLOW_QUALIFIED/DENIED statuses, we should use OK or
BLOCKED_DEVICE or similar instead.

This caused allowlisted features (like WebRender) to be taken away from
users in the most recent nightly.

Differential Revision: https://phabricator.services.mozilla.com/D160408

Differential Revision: https://phabricator.services.mozilla.com/D160196

Differential Revision: https://phabricator.services.mozilla.com/D159898

Bug 1700396: Bump updatebot to get the dep update and the spurious update filing improvement r=jewilde

Differential Revision: https://phabricator.services.mozilla.com/D160229

Differential Revision: https://phabricator.services.mozilla.com/D160166

Differential Revision: https://phabricator.services.mozilla.com/D160278

Differential Revision: https://phabricator.services.mozilla.com/D160277

Differential Revision: https://phabricator.services.mozilla.com/D160275

Differential Revision: https://phabricator.services.mozilla.com/D160148

Bug 1581213 - Disabling dom mutation breakpoints in the debugger doesn't show checked context menu in the inspector r=jdescottes

Add disabled icon in inspector when a dom mutation breakpoint is disabled.
Add mochitests.

Differential Revision: https://phabricator.services.mozilla.com/D157122

Differential Revision: https://phabricator.services.mozilla.com/D160263

Differential Revision: https://phabricator.services.mozilla.com/D158526

Backed out changeset 6ff613ee0977 (bug 1774302)
Backed out changeset b94e43f1e91f (bug 1774302)
Backed out changeset 5a2fc97cac78 (bug 1774302)
Backed out changeset 3db9d390aa0d (bug 1774302)
Backed out changeset 0009cdcc3e11 (bug 1774302)
Backed out changeset 7328aadd86e9 (bug 1774302)

Backed out changeset ad5bb5f4a576 (bug 1794020) for causing bc failures on browser_policy_firefoxhome.js. CLOSED TREE

Backed out changeset bee94ed5a33d (bug 1794040) for causing wpt failures on container-type-containment.html.

dsb -> aedc684faf32c407664662a20be30785456f6d70
hsb -> f98ab31206bda3fb0ec8f0697eecd45f10c90fd6
hy-AM -> 2f475aa03beaf67ca50260d914316a7661a827df
is -> a12d2a5754dcd73eb4ab106a4ef440a4dda682ab
it -> a2c87c598f05ecc39e1edf8b798878c8a2731266
kn -> 64d279330033c8254b61fedb3a80e4898ccb7197
oc -> 4e9dfb3919215f63ea5575803154d9080c874ac7
sl -> 96f4e263da4098531711656f627c5d7b1d27658b
tg -> 9132c2fc2ddbebd5936c56f6a2c8559a15f7bbdc

Differential Revision: https://phabricator.services.mozilla.com/D160374

Bug 1796590: Remove fuzzy-if(appleSilicon) annotation for css-grid/grid-item-video-stretch-001.html. (no review, just updating reftest manifest to reflect reality)

Looks like this test used to catastrophically fail on this platform, per this
annotation; and that failure seems to have been fixed by bug 1792257.

DONTBUILD when this lands on autoland, because it won't make a difference
since we don't seem to schedule tasks for this platform on that branch.

Differential Revision: https://phabricator.services.mozilla.com/D160390

Differential Revision: https://phabricator.services.mozilla.com/D144438

Differential Revision: https://phabricator.services.mozilla.com/D157791

Bug 1795775 - Add a telemetry probe to measure the time spent relaying the completion of a network request from the parent process to the child r=necko-reviewers,valentin

We are looking for any unexpected delays in the delivering of this event to the child process.

Differential Revision: https://phabricator.services.mozilla.com/D159892

Differential Revision: https://phabricator.services.mozilla.com/D160360

Bug 1797346:  Set redirectEnd to current timestamp if responseEnd of last channel is not defined.  r=valentin,necko-reviewers

Differential Revision: https://phabricator.services.mozilla.com/D160252

Differential Revision: https://phabricator.services.mozilla.com/D159980

Differential Revision: https://phabricator.services.mozilla.com/D159325

MANUAL PUSH: Trivial fix CLOSED TREE

It was made a bitfield so that we could include style. But then style
containment was removed and the bitfield keeps causing us to do wrong
check (since INLINE_SIZE intersects SIZE).

So just make it an enum. This causes a progression and a test that
failed now times out (which is a pre-existing issue, just like the
pseudo-elements test that times out).

Differential Revision: https://phabricator.services.mozilla.com/D160371

By using `--disable-e10s`, VideoFrame can be serialized in same process
but in different origins. To prevent the VideoFrame from being passed
across different origins, origins should be checked before constructing
a VideoFrame.

Depends on D160307

Differential Revision: https://phabricator.services.mozilla.com/D160155

Depends on D159546

Differential Revision: https://phabricator.services.mozilla.com/D160307

Depends on D153686

Differential Revision: https://phabricator.services.mozilla.com/D159546

This patch implements `{Read, Write}StructuredClone` for `VideoFrame` so
`VideoFrame` can be *{de,}serialize*d.

Since VideoFrame serialization requires to serialize a member RefPtr
instance, the standard [Serializable] implementation is not possible.
The serialized data can be deserialized any number of times, including
zero. As a result, that RefPtr instance should be able to share its
reference and increase the ref-count any time it needs. Therefore, this
patch implements the [Serializable] functions in a custom fashion, which
storing the RefPtr instance in StructuredCloneHolder when serializing
the VideoFrame.

Depends on D153685

Differential Revision: https://phabricator.services.mozilla.com/D153686

This patch add `Serializable` attribute to `VideoFrame` and add some
necessary changes to make this buildable.

Some expectations of *video-frame-serialization.any.is*'s wpts are
changed to `PASS` since they are implemented in bug 1774300.

The `Verify posting closed frames throws` is currently passed by luck so
the its expectation stays the same.

Depends on D159545

Differential Revision: https://phabricator.services.mozilla.com/D153685

Differential Revision: https://phabricator.services.mozilla.com/D159545

`SharedSubResourceCacheLoadingValueBase` define the `mIsCancelled` field which
is overloaded by `SheetLoadData`. This patch moves all fields including
`mIsLoading` to `SheetLoadData` and add accessors to access these fields.

Differential Revision: https://phabricator.services.mozilla.com/D160226

Differential Revision: https://phabricator.services.mozilla.com/D160110

Differential Revision: https://phabricator.services.mozilla.com/D160373

Differential Revision: https://phabricator.services.mozilla.com/D157790

Differential Revision: https://phabricator.services.mozilla.com/D159839