Insert text directly from the virtual keyboard.

ui/keyboard/resources/main.js

 // 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.
 
 var onResize = function() {
   var x = window.innerWidth;
   var y = window.innerHeight;
   var height =  (x > ASPECT_RATIO * y) ? y : Math.floor(x / ASPECT_RATIO);
   keyboard.style.height = height + 'px';
   keyboard.style.width = Math.floor(ASPECT_RATIO * height) + 'px';
   keyboard.style.fontSize = (height / FONT_SIZE_RATIO / ROW_LENGTH) + 'px';
 };
 
-/**
- * Send the given key to chrome.
- */
-function sendKey(key) {
-  var keyIdentifier = key;
-
-  // Fix up some keys to their respective identifiers for convenience.
-  if (keyIdentifier == ' ') {
-    keyIdentifier = 'Spacebar';
-  }
-
-  var keyEvent = {
-    keyIdentifier: keyIdentifier
-  };
-
-  sendKeyEvent(keyEvent);
-};
-
 addEventListener('WebComponentsReady', function() {
   keyboard.appendChild(
       keysets.content.body.firstElementChild.createInstance());
 });
 
 addEventListener('resize', onResize);
 
 addEventListener('load', onResize);