Remove keyIdentifier.

third_party/WebKit/LayoutTests/http/tests/inspector/console-test.js

 var initialize_ConsoleTest = function() {
 
 InspectorTest.preloadModule("source_frame");
 InspectorTest.preloadPanel("console");
 
 InspectorTest.selectMainExecutionContext = function()
 {
     var executionContexts = InspectorTest.mainTarget.runtimeModel.executionContexts();
     for (var context of executionContexts) {
         if (context.isDefault) {
             WebInspector.context.setFlavor(WebInspector.ExecutionContext, context);
             return;
         }
     }
 }
 
 InspectorTest.evaluateInConsole = function(code, callback, dontForceMainContext)
 {
     if (!dontForceMainContext)
         InspectorTest.selectMainExecutionContext();
     callback = InspectorTest.safeWrap(callback);
 
     var consoleView = WebInspector.ConsoleView.instance();
     consoleView.visible = true;
     consoleView._prompt.setText(code);
     var event = new KeyboardEvent("keydown", {
         key: "Enter",
-        keyIdentifier: "Enter",
         bubbles: true,
         cancelable: true
     });
     consoleView._prompt.proxyElementForTests().dispatchEvent(event);
     InspectorTest.addConsoleViewSniffer(function(commandResult) {
         callback(commandResult.toMessageElement().deepTextContent());
     });
 }
 
 InspectorTest.addConsoleViewSniffer = function(override, opt_sticky)
@@ skipping 369 matching lines @@
         if (consoleView._visibleViewMessages.length === expectedCount) {
             InspectorTest.addResult("Message count: " + expectedCount);
             callback();
         } else {
             InspectorTest.addSniffer(consoleView, "_messageAppendedForTests", checkAndReturn);
         }
     }
 }
 
 }