Backed out 4 changesets (bug 1570792, bug 1593358, bug 1575905) for causing bug 1593402 to near permafail. CLOSED TREE

Backed out changeset 43490702945f (bug 1593358)
Backed out changeset cf2f28971e64 (bug 1570792)
Backed out changeset 67f284b0e4c2 (bug 1575905)
Backed out changeset 13d8e61774f1 (bug 1575905)

--HG--
extra : amend_source : 9541e3e941e7b62095715bb4859991bd48ea0489
extra : histedit_source : 51dd3724c2e8b806b2c9e531aa14119ff38f37e4

Backed out changeset e9d1379c65f5 (bug 1585904) for browser-chrome failures on browser_pageinfo_security.

--HG--
extra : histedit_source : 70a6520faf1fe6c83ae6cba3781d534cc3ae81b6

Differential Revision: https://phabricator.services.mozilla.com/D54369

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extra : histedit_source : 6728719847f307627f3ff10535169ee71354b14b

Bug 1589267 - Add conditioned-profile support for desktop Firefox in Browsertime; follow-up fix to include missing raptor.py.

Differential Revision: https://phabricator.services.mozilla.com/D54378

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extra : histedit_source : 82d5f3e9ed43f75a2e50fdd220c53142b18f3797

Differential Revision: https://phabricator.services.mozilla.com/D54025

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extra : source : 4126c23bb67c7a950f3683cd4490320ad464d58a

Differential Revision: https://phabricator.services.mozilla.com/D54335

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extra : moz-landing-system : lando

Bug 1595842 - Import settings wizard dynamic triplets onboarding card for chrome switchers r=fluent-reviewers,k88hudson,flod

Differential Revision: https://phabricator.services.mozilla.com/D54176

--HG--
extra : moz-landing-system : lando

Differential Revision: https://phabricator.services.mozilla.com/D54163

--HG--
extra : moz-landing-system : lando

Differential Revision: https://phabricator.services.mozilla.com/D54354

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extra : moz-landing-system : lando

Bug 1596426 - [mozbuild] Add a 'manifest_relpath' key to all tests in the TestManifestBackend, r=froydnj

I would prefer if this (and the other keys there) were added by the
ReftestManifest object instead:
https://searchfox.org/mozilla-central/rev/652014ca1183c56bc5f04daf01af180d4e50a91c/layout/tools/reftest/reftest/__init__.py#39

But since there is already precedent here, it's easiest to tag
'manifest_relpath' along with the others. Bug 1590388 will likely handle
cleaning all this up.

Differential Revision: https://phabricator.services.mozilla.com/D53970

--HG--
extra : moz-landing-system : lando

Also, make sure it is disabled for MinGW builds because of Bug
1597408.

Differential Revision: https://phabricator.services.mozilla.com/D53286

--HG--
extra : moz-landing-system : lando

Depends on D53713

Differential Revision: https://phabricator.services.mozilla.com/D53714

--HG--
extra : moz-landing-system : lando

Differential Revision: https://phabricator.services.mozilla.com/D53713

--HG--
extra : moz-landing-system : lando

The native allocations feature added stackwalking that can happen anywhere that
memory is allocated. This means that stackwalking happens in places where the
execution already has a very large execution stack. Stackwalking was relying
on stack-allocated buffers used for merging stacks. This was taking up 64kb of
stack space. On Linux, this was causing a stack overflow, as there is only 256kb of
stack space. I encountered a crash while using GDB. Using pointer arithmetic,
I determined that the stack size before stack walking was around 20kb, and during
stackwalking, we overflowed the stack (>256kb). The largest culprit was the
JS::ProfilingFrameIterator::Frame jsFrames[MAX_JS_FRAMES]. In addition,
Bug 1468789 added another member to the Frame class, also increasing the size
of the stack allocation.

I changed the implementation to allocate some memory on the CorePS class, and
share that with every stackwalk that happens. I tested this loading a large news
site, and didn't get any crashes.

Differential Revision: https://phabricator.services.mozilla.com/D54072

--HG--
extra : moz-landing-system : lando

Differential Revision: https://phabricator.services.mozilla.com/D54060

--HG--
extra : moz-landing-system : lando

Differential Revision: https://phabricator.services.mozilla.com/D53169

--HG--
extra : moz-landing-system : lando

Bug 1568903 - Part 10: Update test_xrayToJS to handle the new AggregateError object and the Promise method. r=peterv,jorendorff

Differential Revision: https://phabricator.services.mozilla.com/D51660

--HG--
extra : moz-landing-system : lando

As with AggregateError, `Promise.any` is only enabled in Nightly.

Now that everything is in place, the actual `Promise.any` implementation is
relatively straight forward. The only tricky part is probably just the
`ThrowAggregateError` function, when the async stack is created to give a
better stack trace.

Differential Revision: https://phabricator.services.mozilla.com/D51659

--HG--
rename : js/src/jit-test/tests/promise/promise-race-with-non-default-resolving.js => js/src/jit-test/tests/promise/promise-any-with-non-default-resolving.js
extra : moz-landing-system : lando

Bug 1568903 - Part 8: Add separate struct to work with Promise combinator elements arrays. r=jorendorff

Adds a separate struct to hold the elements arrays and to apply wrapping and
unwrapping at the correct points. This will let us avoid copying this code
another time for the `Promise.any` proposal.

Differential Revision: https://phabricator.services.mozilla.com/D51658

--HG--
extra : moz-landing-system : lando

Bug 1568903 - Part 7: Add function to check if Promise combinator element function was already called. r=jorendorff

The first five steps in each Promise combinator element function are always the
same. Add a helper function for this task to reduce more code duplication.

Differential Revision: https://phabricator.services.mozilla.com/D51656

--HG--
extra : moz-landing-system : lando

Moves the `NewNativeFunction` and the two `setExtendedSlot` calls into a helper
function to reduce code duplication.

Differential Revision: https://phabricator.services.mozilla.com/D51655

--HG--
extra : moz-landing-system : lando

The draft proposal calls `Promise.all`, `Promise.allSettled`, `Promise.any`, and
`Promise.race` "Promise combinators". Let's reuse that name to avoid having to
spell each function name in shared functions. For example instead of
`CommonStaticAllRace`, or soon `CommonStaticAllRaceAny`, we get
`CommonPromiseCombinator`.

- `PromiseAllDataHolder` is currently used for `Promise.all` and
`Promise.allSettled`, and soon also for `Promise.any`. Rename it to
`PromiseCombinatorDataHolder` to express that different Promise combinators use
this object.

Differential Revision: https://phabricator.services.mozilla.com/D51654

--HG--
extra : moz-landing-system : lando

Adds AggregateError, but only enables it for Nightly builds, because the draft
proposal is still incomplete, so it doesn't make sense to let this feature ride
the trains at this moment.

- The `other_error_properties` array was changed to individual static variables,
because AggregateError has more than three properties, which prevents it to be
stored in `JSPropertySpec[][3]`.

- `AggregateErrorObject` can't use the normal `ErrorObject` class, because it
needs an additional slot for the [[AggregateErrors]].

- For similar reasons it can't use the shared `Error` constructor function,
because the `AggregateError` constructor has an additional `errors` iterable
argument which it needs to process.

Differential Revision: https://phabricator.services.mozilla.com/D51653

--HG--
extra : moz-landing-system : lando

Update the #includes after moving the code in part 2.

Differential Revision: https://phabricator.services.mozilla.com/D51652

--HG--
extra : moz-landing-system : lando

The ErrorObject classes are already declared in ErrorObject.h, so it seems
useful to also move their definitions into the corresponding cpp file.

Also adds `js::CaptureStack` to jsexn.h so it can be called from ErrorObject.cpp
and to remove the duplicated implementation in JSContext.cpp.

Differential Revision: https://phabricator.services.mozilla.com/D51651

--HG--
extra : moz-landing-system : lando

GlobalObject.h had an unnecessary #include for ErrorObject.h, which led to
recompiling more or less all of SpiderMonkey when modifying ErrorObject.h,
because GlobalObject.h is (transitively) included in most files.

Differential Revision: https://phabricator.services.mozilla.com/D51649

--HG--
extra : moz-landing-system : lando

Bug 1580077 - Exfiltrate selected histograms for performance metrics via geckoview_streaming. r=chutten

Differential Revision: https://phabricator.services.mozilla.com/D54046

--HG--
extra : moz-landing-system : lando

Backed out changeset 4126c23bb67c (bug 1598107) for causing browser chrome failures on browser_bug399606.js. CLOSED TREE

Backed out changeset 8cdae49ab472 (bug 1598539) for causing build bustages in EditorBase.cpp CLOSED TREE

Differential Revision: https://phabricator.services.mozilla.com/D50110

--HG--
extra : moz-landing-system : lando

As a side-effect this will also update runtime data for all suites using
'--chunk-by-runtime'.

This change simultaneously:

1. Stores runtime data from all suites
2. Stores runtime data from all tests (no more percentile)
3. Stores distinct data for android, unix (osx/linux) and windows
4. Reduces the size of 'testing/runtimes' from 408k -> 168k

The chunks look more balanced from my unscientific glance (especially on Windows).

Differential Revision: https://phabricator.services.mozilla.com/D53702

--HG--
extra : moz-landing-system : lando

Bug 1583364 - Update testing/runtimes/writeruntimes script to write info at the manifest level, r=gbrown

The new format will be:

    { <path/to/manifest.ini>: <average duration> }

Differential Revision: https://phabricator.services.mozilla.com/D53701

--HG--
extra : moz-landing-system : lando

The script should just do the thing that we want. Providing options just
increases the chance of user error. I don't see any need to specify either of
these things.

Depends on D53699

Differential Revision: https://phabricator.services.mozilla.com/D53700

--HG--
extra : moz-landing-system : lando

The main motivation here was to gain access to the mach enviroment for the
future refactor.

Depends on D53698

Differential Revision: https://phabricator.services.mozilla.com/D53699

--HG--
rename : testing/runtimes/writeruntimes.py => testing/runtimes/writeruntimes
extra : moz-landing-system : lando

Bug 1583364 - Create a 'build_flavor' key mapping 'moztest.resolve.TEST_SUITES' to their build flavor, r=gbrown

Build flavors are defined in 'python/mozbuild/mozbuild/testing.py'.

This change is needed by D52729 but it's also a good way to tell which suites
are integrated into the TestManifestBackend in the build system. So I'm landing
it here instead.

Depends on D53030

Differential Revision: https://phabricator.services.mozilla.com/D53698

--HG--
extra : moz-landing-system : lando

Differential Revision: https://phabricator.services.mozilla.com/D54025

--HG--
extra : moz-landing-system : lando

Bug 1536156 - Make VideoFrameContainer::ClearFutureFrames keep the current frame instead of the first frame. r=padenot

Depends on D54117

Differential Revision: https://phabricator.services.mozilla.com/D54301

--HG--
extra : moz-landing-system : lando

Differential Revision: https://phabricator.services.mozilla.com/D54117

--HG--
extra : moz-landing-system : lando

Unlink must not cause an AddRef on the unlinked object, or it is at risk of
leaking. See 1593739 for an example of where this happens.

EndCloningVisually is dangerous in that it tries to do more than just unlink the
video element. It does AddRef in NotifyUAWidgetSetupOrChange, so that must be
avoided.

Previous patches to this bug make sure that MediaDecoder shutdown takes care of
clearing the secondary video container in the MediaDecoder stack, so this is not
actually necessary anymore.

Differential Revision: https://phabricator.services.mozilla.com/D53832

--HG--
extra : moz-landing-system : lando

Differential Revision: https://phabricator.services.mozilla.com/D53733

--HG--
extra : moz-landing-system : lando