Remove keyIdentifier.

third_party/WebKit/LayoutTests/fast/events/key-events-in-input-button.html

 <p>To test manually, press keys and compare results to other browsers.</p>
 <input type="button" value="Input"
    onclick="log(eventInfo(event));"
    onmousedown="log(eventInfo(event));"
    onmouseup="log(eventInfo(event));"
    onkeypress="log(eventInfo(event));"
    onkeydown="log(eventInfo(event));"
    onkeyup="log(eventInfo(event));">
 </input>
 <div id="log"></div>
 
 <script>
 function log(msg) {
    document.getElementById("log").innerHTML+= msg + "<br />";
 }
 function eventInfo(event, where) {
   try {
   if (!event)
     event = window.event;
     target = event.srcElement ? event.srcElement : event.target;
     if (event.type == "textInput")
         return (where ? "(" + where + ") " : "") + target.tagName + " - " + event.type + " - " + event.data;
     else if (event.type == "keydown" || event.type == "keypress" || event.type == "keyup") 
         return (where ? "(" + where + ") " : "") + target.tagName + " - " + event.type
             + ' - ' + [event.ctrlKey, event.altKey, event.shiftKey, event.metaKey]
-            + ' - ' + event.keyIdentifier
-            + ' - ' + event.keyCode
+            + ' -' + event.key
+            + '- ' + event.keyCode
             + ' - ' + event.charCode;
     else if (event.type == "mousedown" || event.type == "click" || event.type == "mouseup")
         return (where ? "(" + where + ") " : "") + target.tagName + " - " + event.type;
 
     } catch (ex) {
         alert(ex);
     }
 }
 log("target - type - " + ["ctrlKey", "altKey", "shiftKey", "metaKey"]
-        + ' - ' + "keyIdentifier"
+        + ' - ' + "key"
         + ' - ' + "keyCode"
         + ' - ' + "charCode");
 
 if (document.getElementsByTagName("input")[0].addEventListener)
     document.getElementsByTagName("input")[0].addEventListener('textInput', function(e) {log(eventInfo(e));}, false);
 
 document.getElementsByTagName("input")[0].focus();
 
 if (window.testRunner) {
     testRunner.dumpAsText();
     log("Space:");
     eventSender.keyDown(" ", []);
     log("Enter:");
-    eventSender.keyDown("\r", []);
+    eventSender.keyDown("Enter", []);
     log("A:");
     eventSender.keyDown("A", []);
 }
 </script>