Display images in multiline Braille

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

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js b/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
index bbb2bfa2bf28882b9aee56b546c4bcd796951512..7d3aeabab611b66f9f3040897dfdae7116624b01 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
@@ -65,6 +65,7 @@ DesktopAutomationHandler = function(node) {
   this.addListener_(e.textChanged, this.onTextChanged);
   this.addListener_(e.textSelectionChanged, this.onTextSelectionChanged);
   this.addListener_(e.valueChanged, this.onValueChanged);
+  this.addListener_(e.imageFrameUpdated, this.onImageFrameUpdated);
 
   AutomationObjectConstructorInstaller.init(node, function() {
     chrome.automation.getFocus((function(focus) {
@@ -386,6 +387,33 @@ DesktopAutomationHandler.prototype = {
   },
 
   /**
+   * Provides all feedback once a image frame updated event fires.
+   * @param {!AutomationEvent} evt
+   */
+  onImageFrameUpdated: function(evt) {
+    var node = evt.target;
+    if (!node)
+      return;
+
+    // If |node| is NOT in the current range, return
+    var prevRange = ChromeVoxState.instance.currentRange;
+    if (!prevRange.contentEquals(cursors.Range.fromNode(node)) &&
+        !node.state.focused) {
+      return;
+    }
+
+    var output = new Output();
+    if (!this.textEditHandler_) {
+      output.withBraille(
+          ChromeVoxState.instance.currentRange, prevRange, evt.type);
+    } else {
+      // Delegate event handling to the text edit handler for braille.
+      this.textEditHandler_.onEvent(evt);
+    }
+    output.go();
+  },
+
+  /**
    * Provides all feedback once a value changed event fires.
    * @param {!AutomationEvent} evt
    */