Most browsers can clear Cookies or WebSite Data from an option menu. However, WinCairo MiniBrowser does not have the menu. So, add an option in a menu bar to clear Cookies and Website data.
Pull request: https://github.com/WebKit/WebKit/pull/6195
Committed 256386@main (db8f8f7b140e): <https://commits.webkit.org/256386@main> Reviewed commits have been landed. Closing PR #6195 and removing active labels.
<rdar://problem/102027907>