FIELDSET element should not check inner controls in checkValidity().

third_party/WebKit/LayoutTests/fast/forms/checkValidity-001.html

Index: third_party/WebKit/LayoutTests/fast/forms/checkValidity-001.html
diff --git a/third_party/WebKit/LayoutTests/fast/forms/checkValidity-001.html b/third_party/WebKit/LayoutTests/fast/forms/checkValidity-001.html
index 64772090430ab5eb2288786dc8463190714dccca..8a253f565daac25ce6ea4e2ed2ee2614e1d0f6b3 100644
--- a/third_party/WebKit/LayoutTests/fast/forms/checkValidity-001.html
+++ b/third_party/WebKit/LayoutTests/fast/forms/checkValidity-001.html
@@ -7,6 +7,7 @@
 <p id="description"></p>
 <form method="get">
 <fieldset name="victim"></fieldset>
+<fieldset name="victim"><input required></fieldset>
 <input name="victim" type="text" value="lorem ipsum"/>
 <button name="victim">lorem ipsum</button>
 <select name="victim"></select>
@@ -20,7 +21,8 @@
 description("This test checks if checkValidity() returns correctly a true (meaning no error) result.");
 
 shouldBe('document.getElementsByTagName("fieldset")[0].checkValidity()', 'true');
-shouldBe('document.getElementsByTagName("input")[0].checkValidity()', 'true');
+shouldBe('document.getElementsByTagName("fieldset")[1].checkValidity()', 'true');
+shouldBe('document.getElementsByTagName("input")[1].checkValidity()', 'true');
 shouldBe('document.getElementsByTagName("button")[0].checkValidity()', 'true');
 shouldBe('document.getElementsByTagName("select")[0].checkValidity()', 'true');
 shouldBe('document.getElementsByTagName("textarea")[0].checkValidity()', 'true');