Update CSS tests to revision 31d63cc79bd4c929ed582229e936d7b389f3e6ab

tests/wpt/css-tests/css-ui-3_dev/xhtml1/box-sizing-content-box-002.xht

@@ -0,0 +1,45 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+  <title>CSS Test: Box Sizing - Content-Box with specified width/height</title>
+  <link rel="author" title="Scott Johnson" href="mailto:sjohnson@mozilla.com" />
+  <link rel="help" href="http://www.w3.org/TR/css3-ui/#box-sizing" />
+  <meta name="assert" content="box-sizing: content-box should make the element's (calc) width be the distance from the left content edge to the right content edge and the height be the distance from the top content edge to the bottom content edge." />
+  <style type="text/css"><![CDATA[
+    .container {
+      width: 300px;
+      height: 100px;
+      border: 2px solid black;
+      position: absolute;
+      left: 25px;
+      top: 25px;
+      background-color: red;
+    }
+
+    .box-sized {
+      box-sizing: content-box;
+      width: calc(50% - 10px);
+      height: calc(100% - 10px);
+      z-index: 1;
+      float: left;
+      padding: 5px 5px;
+    }
+
+    #one {
+      background-color: green;
+    }
+
+    #two {
+      background-color: blue;
+    }
+  ]]></style>
+ </head>
+ <body>
+   The two divs should be side-by-side, not one on top of another. No red should be visible.
+   <br />
+   <div class="container">
+     <div class="box-sized" id="one">LEFT HALF</div>
+     <div class="box-sized" id="two">RIGHT HALF</div>
+   </div>
+ </body>
+</html>