WebUIHandler for chrome://keyboard

ui/keyboard/resources/send_key_event.js

Index: ui/keyboard/resources/send_key_event.js
diff --git a/ui/keyboard/resources/send_key_event.js b/ui/keyboard/resources/send_key_event.js
new file mode 100644
index 0000000000000000000000000000000000000000..1f69be47551f5903067af048a573fb21ad0cc018
--- /dev/null
+++ b/ui/keyboard/resources/send_key_event.js
@@ -0,0 +1,18 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function logIfError() {
+  if (chrome.runtime.lastError) {
+    console.log(chrome.runtime.lastError);
+  }
+}
+
+function sendKeyEvent(keyEvent) {
+  keyEvent.type = 'keydown';
+  chrome.experimental.input.virtualKeyboard.sendKeyboardEvent(keyEvent,
+      logIfError);
+  keyEvent.type = 'keyup';
+  chrome.experimental.input.virtualKeyboard.sendKeyboardEvent(keyEvent,
+      logIfError);
+}