Creating a shared worker connection should retry without providing a specific webprocess
<rdar://problem/101537922>
<rdar://101506812>
Pull request: https://github.com/WebKit/WebKit/pull/5749
Committed 255968@main (62dfaac6890c): <https://commits.webkit.org/255968@main> Reviewed commits have been landed. Closing PR #5749 and removing active labels.