Unprefix usage of -webkit-transform in tests

LayoutTests/fast/dom/Range/getBoundingClientRect.html

 <script src="../../../resources/js-test.js"></script>
 <style>
 body {
     font: 16px Ahem;
 }
 
 .bbox {
     position:absolute;
     outline: 5px solid rgba(255, 0, 0, .75);
     z-index: -1;
 }
 
 .box {
     width: 400px;
     line-height: 40px;
 }
 
 .outer {
     outline: 2px solid green;
 }
 
 .inner {
     display: inline-block;
     width: 40px;
     height: 20px;
     outline: 2px solid blue;
 }
 
 #test5 {
-    -webkit-transform: translate(50px, 100px) rotate(50deg);
+    transform: translate(50px, 100px) rotate(50deg);
 }
 
 #console {
     position:absolute;
     left: 500px;
 }
 
 #testArea {
     width: 300px;
 }
@@ skipping 119 matching lines @@
     debug("Test 6")
     var range6 = document.createRange();
     rect = range6.getBoundingClientRect()
     testClientRect(rect, expectedResults[6 - 1]);
 
     if (window.testRunner) {
         var area = document.getElementById('testArea');
         area.parentNode.removeChild(area);
     }
 </script>