Bug 1804449: document basic information about update infrastructure and watershed updates in the source docs. r=jcristau

Differential Revision: https://phabricator.services.mozilla.com/D164493

Now that `replaceShape` also works for dictionary shapes, we don't need the `isShared` check anymore.

Depends on D164572

Differential Revision: https://phabricator.services.mozilla.com/D164575

Adds a constructor that takes the object for which we want to create a new shape,
so that we can get rid of some roots.

Differential Revision: https://phabricator.services.mozilla.com/D164572

This makes the code for dictionary shapes more similar to the other shapes and
simplifies the callers.

It's also more efficient because instead of cloning the shape and then mutating it,
the new shape now has the right contents from the start.

Differential Revision: https://phabricator.services.mozilla.com/D164571

Differential Revision: https://phabricator.services.mozilla.com/D164073

Bug 1772908 - [6/6] Replace polling in UpdateDriver with use of HandleWatcher on Windows r=application-update-reviewers,bytesized

On Windows and on most flavors of Unix (including Linux, but explicitly
excluding macOS), when we wait for an updater-process to terminate, we
poll for its completion rather than reacting asynchronously to some
OS-provided event. The polling loop is _supposed_ to be async-friendly
and interruptible, in that it enqueues its continuation onto its
thread's event queue, rather than directly and synchronously looping.

Unfortunately, the polling loop doesn't idle between poll attempts.
Instead, it calls `sleep()` (or the moral equivalent) directly within
the posted task, and then enqueues its next continuation at the default
priority before concluding. Since shutdown-time teardown is effectively
an idle-priority task, it will never get to run unless the updater
finishes — so an active updater process will always induce a shutdown
hang.

The best fix for this is almost certainly to just _not_ poll, and
instead set up some listener for whatever asynchronous mechanism each OS
provides for this sort of thing.

For Windows, use `HandleWatcher` to do exactly that. (For other OSes,
kick the can down the road.)

Differential Revision: https://phabricator.services.mozilla.com/D159563

Implement a version of Chromium's `base::ObjectWatcher` which does not
rely on the Chromium MessageLoop.

Differential Revision: https://phabricator.services.mozilla.com/D159562

Differential Revision: https://phabricator.services.mozilla.com/D156837

Bug 1401592: Add a config option to imitate the old setParameters behavior. r=jib,chutten,webidl,smaug

When the compat mode is used, we log warnings to the JS console instead of
throwing. We also add a bunch of Glean metrics for tracking how often we
see these warnings (or failures) in the field.

Differential Revision: https://phabricator.services.mozilla.com/D161523

Differential Revision: https://phabricator.services.mozilla.com/D157657

Bug 1401592: Test that sRD with a single rid results in [[SendEncodings]] containing that rid. r=jib

Differential Revision: https://phabricator.services.mozilla.com/D157656

Differential Revision: https://phabricator.services.mozilla.com/D157655

Bug 1401592: Restore old ridless unicast encoding when JSEP rolls back an initial simulcast offer. r=mjf

Differential Revision: https://phabricator.services.mozilla.com/D157654

Differential Revision: https://phabricator.services.mozilla.com/D157653

Differential Revision: https://phabricator.services.mozilla.com/D157651

Differential Revision: https://phabricator.services.mozilla.com/D157650

Here we adopt the strategy used for sRD(offer) racing against addTrack; when
the race is detected, the sRD is restarted.

We also clear [[LastReturnedParameters]] when sRD or sLD(answer) finishes,
according to the spec.

Differential Revision: https://phabricator.services.mozilla.com/D156836

Also adds some helper code based on the helper code in wpt.

Differential Revision: https://phabricator.services.mozilla.com/D156835

Bug 1401592: Support sendEncodings in addTransceiver, and bring get/setParameters up to spec. r=mjf,webidl,smaug

Also, fix a pre-existing bug in JsepTrack::operator=

Differential Revision: https://phabricator.services.mozilla.com/D156834

There is not really any reason to support disabling this feature.

Differential Revision: https://phabricator.services.mozilla.com/D156833

Includes a configured max rid length, since it is not very reasonable to assume
that rids of length 255 are supported by the RTP engine, regardless of what
the IETF specs say.

Differential Revision: https://phabricator.services.mozilla.com/D156832

JsepTrack used to be in charge of this, but because JSEP doesn't negotiate
encoding constraints, it did not make sense to delegate this to the JSEP code.

Differential Revision: https://phabricator.services.mozilla.com/D156831

The spec has settled on not allowing these constraints to be negotiated, so all
that is left is the negotiation of the set of rids.

Also, add an include to eliminate some bot spam.

Differential Revision: https://phabricator.services.mozilla.com/D156830

Differential Revision: https://phabricator.services.mozilla.com/D156829

Differential Revision: https://phabricator.services.mozilla.com/D156828

Previously, when current overflow area has one axis at zero size, calling
`OverflowAreas::Union*` with a rect with both axes at zero would overwrite
the axis with non-zero size.

Differential Revision: https://phabricator.services.mozilla.com/D162245

The HOST_NAME could be undefined if the URL is not valid and throws. The
broader functions that use it would still be defined due to hoisting.

Differential Revision: https://phabricator.services.mozilla.com/D164462

Differential Revision: https://phabricator.services.mozilla.com/D164449

Differential Revision: https://phabricator.services.mozilla.com/D162305

Differential Revision: https://phabricator.services.mozilla.com/D163721

Differential Revision: https://phabricator.services.mozilla.com/D163720

Bug 1799393 - Prevent hidden Fx View tab from triggering the closing multiple tabs warning in Windows and Linux r=Gijs

Updated the tab closing prompt logic to use the number of visible tabs open to determine if the prompt should show in Windows and Linux.

Differential Revision: https://phabricator.services.mozilla.com/D162627

Differential Revision: https://phabricator.services.mozilla.com/D163714

This prevents the issue described in the bug in two ways:
- avoid attempting to start a connection in shutdown
- call connection.close() even if we fail to add a shutdown blocker.

It does both because if we did only the first, we would still have a potential race where
when _getConnection is called, we would not be in shutdown, but by the time
we try to close the connection, we could be. If we only did the second, we'd keep retrying
which is also bad.

Differential Revision: https://phabricator.services.mozilla.com/D163225

Backed out changeset 270d2dcb215c (bug 1800422) for causing bustages in CookieBannerDomainPrefService.cpp. CLOSED TREE

Differential Revision: https://phabricator.services.mozilla.com/D164437

Bug 1803331 - skia/generator: refresh the list to have the up to date moz.build after running generate_mozbuild.py r=nical DONTBUILD

Differential Revision: https://phabricator.services.mozilla.com/D163813

Differential Revision: https://phabricator.services.mozilla.com/D164552

Bug 1805306 - Allow retrieval of compressed config files in final-verification.sh r=jcristau DONTBUILD

Differential Revision: https://phabricator.services.mozilla.com/D164534

Differential Revision: https://phabricator.services.mozilla.com/D164566