We're seeing debug assertion failures in TrackListBase::suspend after r233496.
<rdar://problem/41878885>
<rdar://problem/41878897>
Created attachment 344404 [details] Fixes the bug
Wow, that was very timely review. Thanks!
Committed r233571: <https://trac.webkit.org/changeset/233571>
*** Bug 187371 has been marked as a duplicate of this bug. ***
Reverted r233496 and r233571 for reason: Likely cause of <rdar://problem/42160890> and <rdar://problem/42329658> as ActiveDOMObjects can now be constructed / destroyed while we are iterating over them. Committed r234177: <https://trac.webkit.org/changeset/234177>
Relanded in https://trac.webkit.org/changeset/234374/webkit.