Address post landing review feedback from Alex about 271644@main. Use a ContextMenuContextData constructor on deserialization from IPC instead of a fromIPC() static function.
Pull request: https://github.com/WebKit/WebKit/pull/21421
Committed 271658@main (6685cecb32b0): <https://commits.webkit.org/271658@main> Reviewed commits have been landed. Closing PR #21421 and removing active labels.
<rdar://problem/119291830>