Add a treeChange type to Automation

chrome/common/extensions/api/automation.idl

 // Copyright 2014 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.
 
 // The <code>chrome.automation</code> API allows developers to access the
 // automation (accessibility) tree for the browser. The tree resembles the DOM
 // tree, but only exposes the <em>semantic</em> structure of a page. It can be
 // used to programmatically interact with a page by examining names, roles, and
 // states, listening for events, and performing actions on nodes.
 [nocompile] namespace automation {
@@ skipping 221 matching lines @@
      * tree, so it's possibly the root of a new subtree - it does not mean
      * that it necessarily has children.
      */
     subtreeCreated,
 
     /**
      * This node changed.
      */
     nodeChanged,
 
+        /**
+     * This node's text (name) changed.
+     */
+    textChanged,
+
     /**
      * This node was removed.
      */
     nodeRemoved
   };
 
   dictionary Rect {
     long left;
     long top;
     long width;
@@ skipping 381 matching lines @@
     // Everything in the tree between the two node/offset pairs gets included
     // in the selection. The anchor is where the user started the selection,
     // while the focus is the point at which the selection gets extended
     // e.g. when dragging with a mouse or using the keyboard. For nodes with
     // the role staticText, the offset gives the character offset within
     // the value where the selection starts or ends, respectively.
     [nocompile] static void setDocumentSelection(
         SetDocumentSelectionParams params);
   };
 };