This test appears when using --enable-xorigin-test:

TEST-UNEXPECTED-FAIL | dom/tests/mochitest/bugs/test_errorReporting.html | monitorConsole | [0] must match {"message":"[JavaScript Error: \"SecurityError: Permission denied to access property \"document\" on cross-origin object\" {file: \"resource:///actors/GeckoViewAutoFillChild.jsm\" line: 70}]\nhandleEvent@resource:///actors/GeckoViewAutoFillChild.jsm:70:13\n","errorMessage":"SecurityError: Permission denied to access property \"document\"

e.g. https://treeherder.mozilla.org/jobs?repo=try&author=asferro%40mozilla.com&selectedTaskRun=bJ2kzr7sRJCIbZ1UEaSOZA.0

The test failure in the bug is failing because the eventDispatcher in the actor
was previously only available in the top-level-frame.

In addition to adjusting for ActorDispatcher, this patch also makes every actor
handle its own frame (rather than handling all the in-process children) which
simplifies the code a bit.

We also modify the test to use a third-party iframe so that the OOP iframe case
is covered.

With Fission, pageshow and pagehide are not guaranteed to happen in order,
e.g. we might get the following order of events:

pageshow -- navigate to example.org
pageshow -- navigate to google.com
pagehide -- example.org is now hidden

which would break the previous assumption that we could rely on the order of
show and hide events.

To handle that, we keep track of the most-recent-added session and we assume
that that is the session bening displayed.

In the future, we might consider keeping state of all sessions until a
pagehide event for the specific session arrives.

Backed out for causing lint failures in Autofill

Backout link: https://hg.mozilla.org/integration/autoland/rev/1254448a9518995f5922080912755262c984bdfd

https://hg.mozilla.org/mozilla-central/rev/e67c51d1a861
https://hg.mozilla.org/mozilla-central/rev/122a25c67ed6

Since the status are different for nightly and release, what's the status for beta?
For more information, please visit auto_nag documentation.

No need to uplift Fission stuff.

(In reply to Pulsebot from comment #5)

Pushed by asferro@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/e67c51d1a861
Adjust GeckoViewAutoFillChild for ActorDispatcher r=owlish
https://hg.mozilla.org/integration/autoland/rev/122a25c67ed6
Make sure autofill session is reset after navigation. r=owlish

== Change summary for alert #34165 (as of Wed, 18 May 2022 14:36:42 GMT) ==

Improvements:

For up to date results, see: https://treeherder.mozilla.org/perfherder/alerts?id=34165

Moving Android Fission bugs to the new GeckoView::Sandboxing component.