Lockdown mode should provide developers with a way to suppress the “first-time-use” prompt that is displayed the first time a WKWebView is instantiated when Lockdown Mode is enabled.
<rdar://92423822>
PFR: https://github.com/Webkit/WebKit/pull/2572
Committed 252700@main (ec6bbaa): https://commits.webkit.org/252700@main