WebPDFViewPlaceholder should use a weak delegate.
Created attachment 441665 [details]
Comment on attachment 441665 [details]
Marking cq+ since ios-wk2 won't test this (this affects iOS WK1), and api-ios may not test it either (I don't see any WK1 PDF tests in Tools/TestWebKitAPI/Tests).
Both bots are also 8 or 24 hours behind, and any behavior change here would be changing a flakey crashing test into a flakey failing test, so this would likely only need a test expectation update.
Committed r284559 (243301@main): <https://commits.webkit.org/243301@main>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 441665 [details].