- fix <rdar://problem/5264923> Safari frequently "stalls" beneath
          +[NSFont fontWithName:size:] while loading a web page (searching on disk for the font)

        * platform/mac/WebFontCache.mm:
        (+[WebFontCache internalFontWithFamily:traits:size:]): Renamed from fontWithFamily.
        Took out the auto-activation code.
        (+[WebFontCache fontWithFamily:traits:size:]): Added. Calls internalFontWithFamily,
        then calls NSFont to trigger activation if that returned nil, then calls
        internalFontWithFamily again.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@23514 268f45cc-cd09-0410-ab3c-d52691b4dbfc