Remove support for the keygen tag

third_party/WebKit/LayoutTests/fast/forms/form-collection-elements.html

Index: third_party/WebKit/LayoutTests/fast/forms/form-collection-elements.html
diff --git a/third_party/WebKit/LayoutTests/fast/forms/form-collection-elements.html b/third_party/WebKit/LayoutTests/fast/forms/form-collection-elements.html
index 65c34cd4ec00feb80d3271708cc3ffcaaaa8e4ca..2edaa97fcdafe057cf2ff623903d5afc2235edc7 100644
--- a/third_party/WebKit/LayoutTests/fast/forms/form-collection-elements.html
+++ b/third_party/WebKit/LayoutTests/fast/forms/form-collection-elements.html
@@ -33,7 +33,6 @@ container.innerHTML = '<form id="form1">' +
     '<input id=inputimage type=image>' +
     '<input id=inputreset type=reset>' +
     '<input id=inputbutton type=button>' +
-    '<keygen id=keygen1></keygen>' +
     '<label id=label1></label>' +
     '<meter id=meter1></meter>' +
     '<object id=object1></object>' +
@@ -48,7 +47,7 @@ container.innerHTML = '<form id="form1">' +
 
 var owner = document.getElementById('form1');
 
-shouldBe('owner.elements.length', '23');
+shouldBe('owner.elements.length', '22');
 shouldBe('owner.elements[0].id', "'button1'");
 shouldBe('owner.elements[1].id', "'fieldset1'");
 shouldBe('owner.elements[2].id', "'inputhidden'");
@@ -67,11 +66,10 @@ shouldBe('owner.elements[14].id', "'inputfile'");
 shouldBe('owner.elements[15].id', "'inputsubmit'");
 shouldBe('owner.elements[16].id', "'inputreset'");
 shouldBe('owner.elements[17].id', "'inputbutton'");
-shouldBe('owner.elements[18].id', "'keygen1'");
-shouldBe('owner.elements[19].id', "'object1'");
-shouldBe('owner.elements[20].id', "'output1'");
-shouldBe('owner.elements[21].id', "'select1'");
-shouldBe('owner.elements[22].id', "'textarea1'");
+shouldBe('owner.elements[18].id', "'object1'");
+shouldBe('owner.elements[19].id', "'output1'");
+shouldBe('owner.elements[20].id', "'select1'");
+shouldBe('owner.elements[21].id', "'textarea1'");
 </script>
 </body>
 </html>