flips the geometry calcs to get most incremental images to draw
        correctly.  .mac now slideshows draw with the incorrect sliding
        behavior while loading.

        3083287 has been moved to 0.9/1.

        Reviewed by darin.

        * WebCoreSupport.subproj/WebImageRenderer.m:
        (-[WebImageRenderer incrementalLoadWithBytes:length:complete:]):
        (-[WebImageRenderer drawClippedToValidInRect:fromRect:]):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@3023 268f45cc-cd09-0410-ab3c-d52691b4dbfc