REGRESSION (r268865): [macOS WK2] media/modern-media-controls/placard-support/placard-support-pip.html is a flaky timeout

[Ryan Haddad]

media/modern-media-controls/placard-support/placard-support-pip.html has been frequently timing out after https://trac.webkit.org/changeset/268865/webkit landed

https://results.webkit.org/?suite=layout-tests&test=media%2Fmodern-media-controls%2Fplacard-support%2Fplacard-support-pip.html

--- /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/media/modern-media-controls/placard-support/placard-support-pip-expected.txt
+++ /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/media/modern-media-controls/placard-support/placard-support-pip-actual.txt
@@ -1,15 +1,5 @@
-Testing the PlacardSupport behavior when entering picture-in-picture.
+#PID UNRESPONSIVE - WebKitTestRunner (pid 19831)
+FAIL: Timed out waiting for notifyDone to be called
 
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-PASS media.webkitDisplayingFullscreen became true
-PASS mediaController.controls.placard is mediaController.controls.pipPlacard
-PASS mediaController.controls.children.includes(mediaController.controls.pipPlacard) is true
-PASS media.webkitDisplayingFullscreen became false
-PASS mediaController.controls.placard is null
-PASS mediaController.controls.children.includes(mediaController.controls.pipPlacard) is false
-PASS successfullyParsed is true
-
-TEST COMPLETE
-
+#EOF
+#EOF

[Radar WebKit Bug Importer]

<rdar://problem/70695468>

[Peng Liu]

Created attachment 412360 [details]
Patch

[EWS]

Committed r269003: <https://trac.webkit.org/changeset/269003>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 412360 [details].