Remove support for the keygen tag

third_party/WebKit/LayoutTests/fast/forms/form-collection-radio-node-list.html

Index: third_party/WebKit/LayoutTests/fast/forms/form-collection-radio-node-list.html
diff --git a/third_party/WebKit/LayoutTests/fast/forms/form-collection-radio-node-list.html b/third_party/WebKit/LayoutTests/fast/forms/form-collection-radio-node-list.html
index 39b2a998ef11675a469ffd35694166adbc6561cf..b62b4703e01f2f0fb574146957fb64ac6b231404 100644
--- a/third_party/WebKit/LayoutTests/fast/forms/form-collection-radio-node-list.html
+++ b/third_party/WebKit/LayoutTests/fast/forms/form-collection-radio-node-list.html
@@ -24,7 +24,6 @@
     <input id=inputcommon type=image>
     <input id=commoninput type=reset>
     <input id=inputcommon type=button value=buttonValue>
-    <keygen id=keygen1></keygen>
     <label id=label1></label>
     <meter id=meter1></meter>
     <object id=object1></object>
@@ -43,7 +42,7 @@ description("This test is for RadioNodeList specified at http://www.whatwg.org/s
 debug("");
 var owner = document.getElementById('form1');
 
-shouldBe('owner.elements.length', '23');
+shouldBe('owner.elements.length', '22');
 
 var elementsList = owner.elements;
 var radioNodeList = elementsList.namedItem("inputcommon");
@@ -96,7 +95,7 @@ var container = document.getElementById("divId");
 debug("");
 debug("Check RadioNodeList is updated after adding a new element");
 shouldBe('container.appendChild(nonSubtreeElement); radioNodeList.length', '5');
-shouldBe('owner.elements.length', '24');
+shouldBe('owner.elements.length', '23');
 shouldBe('radioNodeList[4].value', "'non subtree element'");
 
 debug("");