Allow Service Workers to run for a little longer in case of functional events

[youennf]

ff2e4e4

Allow Service Workers to run for a little longer in case of functional events
https://bugs.webkit.org/show_bug.cgi?id=240454

Patch by Youenn Fablet <youennf@gmail.com > on 2022-05-17
Reviewed by Chris Dumez.

Functional events should usually trigger opening a new web page on the same origin as the service worker.
There are good chances that the service worker will control the new web page, it is thus potentially useful to
keep the service worker around for a bit, to not pay the cost of stopping and restarting it.
To do so, we introduce a timer in SWServerWorker that handles the termination in case of functional events/debugger.

Covered by updated API test.

* Tools/TestWebKitAPI/Tests/WebKitCocoa/PushAPI.mm:
* Source/WebCore/workers/service/server/SWServerWorker.cpp:
(WebCore::SWServerWorker::startTermination):
(WebCore::SWServerWorker::shouldBeTerminated const):
(WebCore::SWServerWorker::terminateIfPossible):
(WebCore::SWServerWorker::terminationIfPossibleTimerFired):
* Source/WebCore/workers/service/server/SWServerWorker.h:

Canonical link: https://commits.webkit.org/250635@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@294315 268f45cc-cd09-0410-ab3c-d52691b4dbfc

[webkit-early-warning-system]

Committed r294315 (250635@main): https://commits.webkit.org/250635@main

Reviewed commits have been landed. Closing PR #635 and removing active labels.