The identifier does not need to be in the filename, since we are storing it in a folder with that same identifier in the name already alongside other extension state files. This needs some WKContentRuleListStore SPI to support it.
<rdar://problem/119469953>
Pull request: https://github.com/WebKit/WebKit/pull/21611
Committed 271903@main (c96350ffd730): <https://commits.webkit.org/271903@main> Reviewed commits have been landed. Closing PR #21611 and removing active labels.