Fixed getComputedStyle().cursor to include hotSpot if defined

third_party/WebKit/LayoutTests/svg/css/cursor-change-href.svg

 <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
     <g style="cursor:url(#cursor), auto">
         <g>
             <rect id="rect" x="50" y="50" width="100" height="100" fill="green" />
             <text id="result1" x="50" y="200">Not run.</text>
             <text id="result2" x="50" y="220">Not run.</text>
         </g>
     </g>
     <cursor id="cursor" xlink:href="file:///icon1.ico" x="0" y="0" />
     <script>
         // Modifying href of a cursor element should cause a recalc of elements using it.
 
         if (window.testRunner)
             testRunner.dumpAsText();
 
         var rect = document.getElementById("rect");
         var result1 = document.getElementById("result1").firstChild;
         var result2 = document.getElementById("result2").firstChild;
 
-        if (getComputedStyle(rect).cursor == "url(\"file:///icon1.ico\"), auto")
+        if (getComputedStyle(rect).cursor == "url(\"file:///icon1.ico\") 0 0, auto")
             result1.data = "PASS";
         else
             result1.data = "FAIL - " + getComputedStyle(rect).cursor;
 
         document.getElementById("cursor").setAttribute("xlink:href", "file:///icon2.ico");
 
-        if (getComputedStyle(rect).cursor == "url(\"file:///icon2.ico\"), auto")
+        if (getComputedStyle(rect).cursor == "url(\"file:///icon2.ico\") 0 0, auto")
             result2.data = "PASS";
         else
             result2.data = "FAIL - " + getComputedStyle(rect).cursor;
     </script>
 </svg>