REGRESSION: [ MacOS ] media/modern-media-controls/tracks-support/tracks-support-show-panel-fullscreen.html is flaky timing out

• Component: Media
• Status: RESOLVED DUPLICATE

[Jacob Uphoff]

media/modern-media-controls/tracks-support/tracks-support-show-panel-fullscreen.html is flaky timing out on macOS Catalina and Mojave in wk2 and started around commit 252812

I did not try to reproduce the timeout

History:
https://results.webkit.org/?suite=layout-tests&test=media%2Fmodern-media-controls%2Ftracks-support%2Ftracks-support-show-panel-fullscreen.html

Diff:

--- /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/media/modern-media-controls/tracks-support/tracks-support-show-panel-fullscreen-expected.txt
+++ /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/media/modern-media-controls/tracks-support/tracks-support-show-panel-fullscreen-actual.txt
@@ -1,18 +1,5 @@
-Showing the tracks panel in fullscreen.
+#PID UNRESPONSIVE - WebKitTestRunner (pid 36153)
+FAIL: Timed out waiting for notifyDone to be called
 
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-PASS internals.shadowRoot(media).querySelector("button.fullscreen") became different from null
-PASS internals.shadowRoot(media).querySelector("button.fullscreen").getBoundingClientRect().width became different from 0
-PASS internals.shadowRoot(media).querySelector("button.tracks") became different from null
-PASS internals.shadowRoot(media).querySelector("button.tracks").getBoundingClientRect().width became different from 0
-PASS internals.shadowRoot(media).querySelector("button.tracks").getBoundingClientRect().right became 582
-PASS internals.shadowRoot(media).querySelector('.tracks-panel') became different from null
-PASS internals.shadowRoot(media).querySelector('.tracks-panel').style.right is "218px"
-PASS internals.shadowRoot(media).querySelector('.tracks-panel').style.bottom is "101px"
-
-PASS successfullyParsed is true
-
-TEST COMPLETE
-
+#EOF
+#EOF

[Radar WebKit Bug Importer]

<rdar://problem/58817580>

[Alexey Proskuryakov]

This test has been flaky for a long time, and it's marked as such on most platforms, but not everywhere. Perhaps we can still land Shawn's patch?

*** This bug has been marked as a duplicate of bug 182571 ***