Update web-platform-tests and CSS tests.

- Update CSS tests to revision e05bfd5e30ed662c2f8a353577003f8eed230180.
- Update web-platform-tests to revision a052787dd5c069a340031011196b73affbd68cd9.

tests/wpt/css-tests/css-variables-1_dev/html/reftest-toc.htm

@@ -880,6 +880,14 @@
         <td rowspan="1"></td>
       </tr>
     </tbody>
+    <tbody id="variable-reference-without-whitespace" class="">
+      <tr>
+        <td rowspan="1" title="Variable reference without whitespace">
+          <a href="variable-reference-without-whitespace.htm">variable-reference-without-whitespace</a></td>
+        <td><a href="reference/variable-reference-without-whitespace-ref.htm">=</a> </td>
+        <td rowspan="1"></td>
+      </tr>
+    </tbody>
     <tbody id="variable-supports-01" class="">
       <tr>
         <td rowspan="1" title="Test a passing non-custom property declaration in an @supports rule where the property value contains a variable reference and no white space tokens.">
@@ -1416,6 +1424,22 @@
         <td rowspan="1"></td>
       </tr>
     </tbody>
+    <tbody id="vars-background-shorthand-001" class="">
+      <tr>
+        <td rowspan="1" title="CSS Variables 1: Test variables in background shorthand.">
+          <a href="vars-background-shorthand-001.htm">vars-background-shorthand-001</a></td>
+        <td><a href="reference/vars-background-shorthand-001-ref.htm">=</a> </td>
+        <td rowspan="1"></td>
+      </tr>
+    </tbody>
+    <tbody id="vars-font-shorthand-001" class="ahem">
+      <tr>
+        <td rowspan="1" title="CSS Variables 1: Test variables in @font-face, font-family, font shorthand.">
+          <a href="vars-font-shorthand-001.htm">vars-font-shorthand-001</a></td>
+        <td><a href="reference/vars-font-shorthand-001-ref.htm">=</a> </td>
+        <td rowspan="1"><abbr class="ahem" title="Requires Ahem font">Ahem</abbr></td>
+      </tr>
+    </tbody>
   </table>
 
  </body>