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MessagePort: implement disentanglement (#36654)

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Implement
[disentangle](https://html.spec.whatwg.org/multipage/#disentangle)
Remove bespoke gc logic which now becomes unnecessary. 
Adds a wpt test that hits the "disentangle while in transfer" logic.
Updates streams code, fixing an error where disentanglement is
conditional on an error.

Test coverage: there are existing tests in
`/webmessaging/message-channels/close-event/explicitly-closed.tentative.window.js`
for the no transfer case, and the simple completed transfer case, and
this PR adds a test for the more complicated transfer in progress case.

Fix https://github.com/servo/servo/issues/36465

---------

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>
This commit is contained in:
Gregory Terzian 2025-04-30 12:49:38 +02:00 • committed by GitHub
parent c46402e222
commit af5d665efa
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19 changed files with 356 additions and 191 deletions
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7
tests/wpt/meta/webmessaging/message-channels/close-event/explicitly-closed.tentative.window.js.ini vendored
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@ -1,7 +0,0 @@
[explicitly-closed.tentative.window.html]
expected: TIMEOUT
[Close event on port2 is fired when port1 is explicitly closed]
expected: TIMEOUT
[Close event on port2 is fired when port1, which is in a different window, is explicitly closed.]
expected: TIMEOUT