Display images in multiline Braille

chrome/browser/resources/chromeos/chromevox/cvox2/background/automation_predicate.js

 // 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.
 
 /**
  * @fileoverview ChromeVox predicates for the automation extension API.
  */
 
 goog.provide('AutomationPredicate');
 goog.provide('AutomationPredicate.Binary');
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  * hierarchical level.
  * @param {number} level 1-6
  * @return {AutomationPredicate.Unary}
  */
 AutomationPredicate.makeHeadingPredicate = function(level) {
   return function(node) {
     return node.role == Role.HEADING && node.hierarchicalLevel == level;
   };
 };
 
+/**
+ * Matches against nodes that we may be able to retrieve image data from.
+ * @param {!AutomationNode} node
+ * @return {boolean}
+ */
+AutomationPredicate.supportsImageData = AutomationPredicate.roles([
+    Role.CANVAS,
+    Role.IMAGE,
+    Role.VIDEO]);
+
 });  // goog.scope