[Qt] 4 new tests fail introduced in r98852
        https://bugs.webkit.org/show_bug.cgi?id=71253

        Reviewed by Zoltan Herczeg.

        Fix a non-Mac only problem with contain-and-cover-zoomed.html. It zooms out four times, which is ignored on Mac, but respected elsewhere.
        This is the same fix I applied to the svg/zoom/page tests, I forgot this one.

        * fast/backgrounds/size/contain-and-cover-zoomed.html: Don't zoom out more than three times, it's otherwise ignored on Mac/DRT!
        * fast/backgrounds/size/resources/SquirrelFish.svg: Fix typo in XML version, now this shows up in Qt again. Credits to Zoltan Arvai for spotting this.
        * platform/qt/Skipped: Unskip last regression from bug 7153.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@99941 268f45cc-cd09-0410-ab3c-d52691b4dbfc