Reviewed by Hyatt.

        -tests for http://bugzilla.opendarwin.org/show_bug.cgi?id=5146

        * fast/replaced/maxheight-percent.html: Added.
        * fast/replaced/maxheight-pxs.html: Added.
        * fast/replaced/maxwidth-percent.html: Added.
        * fast/replaced/maxwidth-pxs.html: Added.
        * fast/replaced/minheight-percent.html: Added.
        * fast/replaced/minheight-pxs.html: Added.
        * fast/replaced/minwidth-percent.html: Added.
        * fast/replaced/minwidth-pxs.html: Added.
        * fast/replaced/resources/1x1-blue.png: Added.
        * fast/replaced/resources/square-blue-100x100.png: Added.

WebCore:

        Reviewed by Hyatt, tweaked and landed by ggaren.

        - fix http://bugzilla.opendarwin.org/show_bug.cgi?id=5146
          max-height/max-width not resizing images with correct aspect ratio

        This patch is a port and adaptation of Allan Sandfeld Jensen's (carewolf)
        patch of http://bugs.kde.org/show_bug.cgi?id=120107 with the needed
        modifications to suit the Webcore tree.  Makes images respect min/max 
        sizes and their intrinsic aspect ratios at the same time according to 
        CSS 2.1 (http://www.w3.org/TR/CSS21/visudet.html#min-max-widths).  

        Test: fast/replaced/maxheight-percent.html
        Test: fast/replaced/maxheight-pxs.html
        Test: fast/replaced/maxwidth-percent.html
        Test: fast/replaced/maxwidth-pxs.html
        Test: fast/replaced/minheight-percent.html
        Test: fast/replaced/minheight-pxs.html
        Test: fast/replaced/minwidth-percent.html
        Test: fast/replaced/minwidth-pxs.html

        * rendering/render_box.cpp:
        (WebCore::RenderBox::calcReplacedWidth):
        (WebCore::RenderBox::calcReplacedWidthUsing):
        (WebCore::RenderBox::calcReplacedHeight): 
        (WebCore::RenderBox::calcReplacedHeightUsing): Calculate percent heights correctly
        * rendering/render_image.cpp: Respect aspect ratios and calculate max/min
        (WebCore::RenderImage::calcReplacedWidth):
        (WebCore::RenderImage::calcReplacedHeight):
        (WebCore::RenderImage::calcAspectRatioWidth): Added
        (WebCore::RenderImage::calcAspectRatioHeight): Added
        (WebCore::RenderImage::calcMinMaxWidth): Added
        * rendering/render_image.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@12981 268f45cc-cd09-0410-ab3c-d52691b4dbfc