Backed out 10 changesets (bug 1654103, bug 1672023, bug 1518999) for PanZoomControllerTest.touchEventForResult gv-junit failures CLOSED TREE

Backed out changeset ff3fb0b4a512 (bug 1672023)
Backed out changeset e7834b600201 (bug 1654103)
Backed out changeset 807893ca8069 (bug 1518999)
Backed out changeset 13e6b92440e9 (bug 1518999)
Backed out changeset 8b2ac5a6c98a (bug 1518999)
Backed out changeset 575748295752 (bug 1518999)
Backed out changeset 65f07ce7b39b (bug 1518999)
Backed out changeset 4bb80556158d (bug 1518999)
Backed out changeset 8ac8461d7bd7 (bug 1518999)
Backed out changeset e8ba13ee17f5 (bug 1518999)

Backed out changeset 3da0a14a9999 (bug 1663571) for making wpt tests unable to load initial page CLOSED TREE

Update the SetLine / ColSpan source-notes to be relative to the script's
initial line and column number. This allows for more bytecode sharing.

Differential Revision: https://phabricator.services.mozilla.com/D94116

Bug 1668489 - Switch to sixgill that qualifies `using`-aliased template members to avoid collisions between different types r=jonco

Differential Revision: https://phabricator.services.mozilla.com/D94356

Differential Revision: https://phabricator.services.mozilla.com/D94533

Differential Revision: https://phabricator.services.mozilla.com/D94550

Differential Revision: https://phabricator.services.mozilla.com/D91117

Differential Revision: https://phabricator.services.mozilla.com/D94600

Handles edge cases around history.go() with one event loop spin

Differential Revision: https://phabricator.services.mozilla.com/D93302

Differential Revision: https://phabricator.services.mozilla.com/D94359

We're not always in a content process!

Differential Revision: https://phabricator.services.mozilla.com/D94579

Backed out changeset 5cf07d575830 (bug 1346880)
Backed out changeset 26d44e5e139d (bug 1346880)
Backed out changeset 0d4801868a6c (bug 1346880)
Backed out changeset 5feb52637f9f (bug 1346880)
Backed out changeset 086261148f93 (bug 1346880)

Differential Revision: https://phabricator.services.mozilla.com/D94371

This also fixes a bug where we send an extra `about:blank` event when switching
process.

Differential Revision: https://phabricator.services.mozilla.com/D94370

This change refactors GeckoViewProgress into three distincts Trackers:

- PageStateTracker: which keeps track of PageStart and PageStop

- ProgressTracker: which keeps track of individual page load progress

- SecurityTracker: which keeps track of the security status of each page

Differential Revision: https://phabricator.services.mozilla.com/D94369

Differential Revision: https://phabricator.services.mozilla.com/D94368

Differential Revision: https://phabricator.services.mozilla.com/D94189

Bug 1672023 - Remove excluded files from `black.yml` r=sylvestre,perftest-reviewers,geckoview-reviewers,agi

These files were omitted from the original patch because reformatting them required some manual intervention in order to avoid breaking unit tests. Generally the `noqa` lines were already there and just needed to be moved from one line to another (due to the reformatting by `black`), but sometimes `black` saw fit to move a bunch of stuff all onto one line, requiring me to introduce new `noqa` lines.

Besides the autoformat by `black` and some manual fixups, this patch contains no other changes.

# ignore-this-changeset

Differential Revision: https://phabricator.services.mozilla.com/D94052

Bug 1654103: Standardize on Black for Python code in `mozilla-central`. r=remote-protocol-reviewers,marionette-reviewers,webdriver-reviewers,perftest-reviewers,devtools-backward-compat-reviewers,jgilbert,preferences-reviewers,sylvestre,maja_zf,webcompat-reviewers,denschub,ntim,whimboo,sparky

Allow-list all Python code in tree for use with the black linter, and re-format all code in-tree accordingly.

To produce this patch I did all of the following:

1. Make changes to tools/lint/black.yml to remove include: stanza and update list of source extensions.

2. Run ./mach lint --linter black --fix

3. Make some ad-hoc manual updates to python/mozbuild/mozbuild/test/configure/test_configure.py -- it has some hard-coded line numbers that the reformat breaks.

4. Make some ad-hoc manual updates to `testing/marionette/client/setup.py`, `testing/marionette/harness/setup.py`, and `testing/firefox-ui/harness/setup.py`, which have hard-coded regexes that break after the reformat.

5. Add a set of exclusions to black.yml. These will be deleted in a follow-up bug (1672023).

# ignore-this-changeset

Differential Revision: https://phabricator.services.mozilla.com/D94045

Differential Revision: https://phabricator.services.mozilla.com/D94558

Differential Revision: https://phabricator.services.mozilla.com/D94581

Differential Revision: https://phabricator.services.mozilla.com/D94651

Differential Revision: https://phabricator.services.mozilla.com/D94344

Since this bug, Firefox will start to use the same conversion as
Chrome for reporting FCP. This patch cleans our code a little bit
to adapt that.

Differential Revision: https://phabricator.services.mozilla.com/D90109

Bug 1518999 - Bump the browsertime hash to 8bf45e80ccc65237c622246b11c0739f0409e8e4 r=sparky,perftest-reviewers

Bump the browsertime hash to add a fix from upstream which fixes a
firstPaint related bug when FCP is supported.

Differential Revision: https://phabricator.services.mozilla.com/D90108

Some geckoview tests require gradient usage. Since background
images are async, these tests would wait for a contentful paint
to make sure the images are decoded before running the assertions.
This causes an issue because gradient-only backgrounds aren't
contentful anymore according to the latest spec.

We fix the tests by adding a transparent gif to the background
image list to trick the contentful detection.

Differential Revision: https://phabricator.services.mozilla.com/D88230

Depends on D68646

Differential Revision: https://phabricator.services.mozilla.com/D68647

In this patch, we changed a lot of tests from PRECONDITION_FAILED to
timeout because we added the PerformancePaintTiming API so the
precodition is no longer failed. TIMEOUT is required because
these tests expect two performance paint entries, but we only
support one of them.

Depends on D68645

Differential Revision: https://phabricator.services.mozilla.com/D68646

Some tests made some assumptions about the number of returned entries
by performance.getEntries, and these assumptions are not valid
anymore once we added new entries.

Depends on D66463

Differential Revision: https://phabricator.services.mozilla.com/D68645

This patch includes a couple of changes.
1) Notify contentful paint only during refresh driver ticks.
2) Not only the root document, sub document should also have their own
   contentful paint entry.
3) Consider invisible text as contentful as well.

Differential Revision: https://phabricator.services.mozilla.com/D89498

Spec: https://w3c.github.io/paint-timing/#sec-PerformancePaintTiming
We only support FirstContentfulPaint at the moment.

Differential Revision: https://phabricator.services.mozilla.com/D66463

Bug 1672869 - disable dom/media/webaudio/test/mochitest.ini for ThreadSanitizer because new task fails very frequently. DONTBUILD

Differential Revision: https://phabricator.services.mozilla.com/D94646

Differential Revision: https://phabricator.services.mozilla.com/D94645

Differential Revision: https://phabricator.services.mozilla.com/D94608

Differential Revision: https://phabricator.services.mozilla.com/D94627

Differential Revision: https://phabricator.services.mozilla.com/D94601

Differential Revision: https://phabricator.services.mozilla.com/D94456

Bug 1628642 - Unskip test_ext_streamfilter_multiple.html to see if the failures are still present. a=testonly

Differential Revision: https://phabricator.services.mozilla.com/D94180

Bug 1672533 - Dedupe SERPs in history whose query parameters are a subset of a generated search URL. r=adw

Differential Revision: https://phabricator.services.mozilla.com/D94396