Reset algorithm is incorrect for select element with first option disabled

third_party/WebKit/LayoutTests/fast/forms/select/select-ask-for-reset.html

Index: third_party/WebKit/LayoutTests/fast/forms/select/select-ask-for-reset.html
diff --git a/third_party/WebKit/LayoutTests/fast/forms/select/select-ask-for-reset.html b/third_party/WebKit/LayoutTests/fast/forms/select/select-ask-for-reset.html
index fbee983229c17bb22c9385e587bff29430e05569..f2d7432c9ec781561af643a5e7de6bb8768c854f 100644
--- a/third_party/WebKit/LayoutTests/fast/forms/select/select-ask-for-reset.html
+++ b/third_party/WebKit/LayoutTests/fast/forms/select/select-ask-for-reset.html
@@ -29,5 +29,16 @@ test(function() {
     // option list.
     assert_equals(select.selectedIndex, -1);
 }, 'Removing a SELECT tree from another tree should not reset selection.');
+
+test(function() {
+    var form = document.createElement('form');
+    document.body.appendChild(form);
+    var select = document.createElement('select');
+    form.appendChild(select);
+    select.innerHTML = '<option disabled>Apple</option><option>Banana</option><option>Cherry</option>';
+    assert_equals(select.selectedIndex, 1);
+    form.reset();
+    assert_equals(select.selectedIndex, 1);
+}, 'Reset should select the first option element in the list of options that is not disabled to true');
 </script>
 </body>