Rearrange the input APIs into more suitable groupings.

chrome/browser/resources/keyboard/layout_handwriting_vk.js

 // Copyright (c) 2011 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.
 
 /**
  * @fileoverview A handwriting virtual keyboard implementation.
  */
 
 /**
  * Const variables
@@ skipping 78 matching lines @@
     };
     canvas.ontouchmove = canvas.onmousemove;
 
     canvas.onmouseup = function(e) {
       var coords = canvas.getEventCoordinates(e);
       if (canvas.stroke_.length > 0) {
         context.lineTo(coords.x, coords.y);
         context.stroke();
         canvas.addStroke(coords.x, coords.y);
         if (chrome.experimental) {
-          chrome.experimental.input.sendHandwritingStroke(canvas.stroke_);
+          chrome.experimental.input.virtualKeyboard.sendHandwritingStroke(
+              canvas.stroke_);
         }
         canvas.stroke_ = [];
       }
     };
     canvas.onmouseout = canvas.onmouseup;
 
     canvas.ontouchstart = canvas.onmousedown;
     canvas.ontouchenter = canvas.onmousedown;
     canvas.ontouchend = canvas.onmouseup;
     canvas.ontouchleave = canvas.onmouseup;
     canvas.ontouchcancel = canvas.onmouseup;
 
     // Clear the canvas when an IME hides the lookup table.
-    if (chrome.experimental && chrome.experimental.inputUI) {
-      chrome.experimental.inputUI.onUpdateLookupTable.addListener(
+    if (chrome.experimental && chrome.experimental.input.ui) {
+      chrome.experimental.input.ui.onUpdateLookupTable.addListener(
           function(table) {
             if (!table.visible) {
               canvas.clear();
             }
           });
     }
     return canvas;
   },
 
   /**
@@ skipping 54 matching lines @@
   },
 
   /**
    * Clears the canvas.
    * @return {void}
    */
   clear: function() {
     var context = this.getContext('2d');
     context.clearRect(0, 0, this.width, this.height);
     if (chrome.experimental) {
-      chrome.experimental.input.cancelHandwritingStrokes();
+      chrome.experimental.input.virtualKeyboard.cancelHandwritingStrokes();
     }
   },
 
   /**
    * Set the visibility of the canvas.
    * @param {boolean} visible True if the canvas should be visible.
    * @return {void}
    */
   set visible(visible) {
     this.hidden = !visible;
@@ skipping 23 matching lines @@
 ];
 
 // Add the layout to KEYBOARDS, which is defined in common.js
 KEYBOARDS['handwriting-vk'] = {
   'definition': KEYS_HANDWRITING_VK,
   'aspect': 2.1,
   // TODO(yusukes): Stop special-casing canvas when mazda's i18n keyboard
   // code is ready.
   'canvas': null
 };