[webkit-changes] [WebKit/WebKit] 093d44: WPT webcodecs/video-encoder.https.any.html is flaky

[youennf]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 093d44d793d28147c87ed8e321777b3223ec8b57
      https://github.com/WebKit/WebKit/commit/093d44d793d28147c87ed8e321777b3223ec8b57
  Author: Youenn Fablet <youennf at gmail.com>
  Date:   2023-09-08 (Fri, 08 Sep 2023)

  Changed paths:
    M Source/WebCore/Modules/webcodecs/WebCodecsVideoEncoder.cpp

  Log Message:
  -----------
  WPT webcodecs/video-encoder.https.any.html is flaky
https://bugs.webkit.org/show_bug.cgi?id=261271
rdar://115108292

Reviewed by Philippe Normand.

The call to resolve the flush promise is happening within postTask, while the dequeue event is fired as part of the event loop.
The postTask might starve the event loop, thus having the flush promise resolves sooner than the dequeue events.
Also resolving a promise should be done within an event task to improve ordering of promise resolutions.
We change postTask to always go through the event loop, like now done for decoder.
Given postTask is now ensuring that the callback is executed if the encoder is alive, we remove the weakThis checks in each callback.

* Source/WebCore/Modules/webcodecs/WebCodecsVideoEncoder.cpp:
(WebCore::WebCodecsVideoEncoder::configure):

Canonical link: https://commits.webkit.org/267796@main