REGRESSION: LayoutTest media/modern-media-controls/placard-support/placard-support-pip.html is a flaky timeout on Sierra

[Ryan Haddad]

LayoutTest media/modern-media-controls/placard-support/placard-support-pip.html is a flaky timeout

https://build.webkit.org/results/Apple%20Sierra%20Release%20WK1%20(Tests)/r218702%20(2701)/results.html

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=media%2Fmodern-media-controls%2Fplacard-support%2Fplacard-support-pip.html

[Ryan Haddad]

This started yesterday, but I haven't identified the commit that caused it.

Antoine, can you take a look at this? It is currently timing out more often than it passes.

[Antoine Quint]

The test enters fullscreen on WK1 rather than picture-in-picture, at least on High Sierra. It looks like something changed in WebCore.

[Antoine Quint]

Created attachment 313645 [details]
Patch

[Antoine Quint]

See https://bugs.webkit.org/show_bug.cgi?id=173729 for the fullscreen vs. PiP issue.

[WebKit Commit Bot]

Comment on attachment 313645 [details]
Patch

Clearing flags on attachment: 313645

Committed r218725: <http://trac.webkit.org/changeset/218725>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.