Use the feature flag from Bug 245484 to disable IndexedDB when in Lockdown Mode.
<rdar://101187278>
Pull request: https://github.com/Webkit/WebKit/pull/7506
Pull request: https://github.com/WebKit/WebKit/pull/7506
Committed 257804@main (219be2142507): <https://commits.webkit.org/257804@main> Reviewed commits have been landed. Closing PR #7506 and removing active labels.