Reviewed by Darin Adler.

        Pass style for <area> instead of associated <img> when querying whether
        the theme draws the focus ring for an <area>
        https://bugs.webkit.org/show_bug.cgi?id=51632

        Fixes an issue where the style for the associated <img> of an <area>
        was passed when considering whether the theme should draw a focus ring
        for the <area>. Instead, we should pass the theme the style for the <area>.

        It's not possible to test this at this time since there are no themes
        that override focus ring drawing for <area>s.

        * rendering/RenderImage.cpp:
        (WebCore::RenderImage::paintFocusRing): Moved call to RenderTheme::supportsFocusRing()
        such that it's called with respect to the focused <area>.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@74839 268f45cc-cd09-0410-ab3c-d52691b4dbfc