Add custom action support

chrome/renderer/resources/extensions/automation/automation_node.js

Index: chrome/renderer/resources/extensions/automation/automation_node.js
diff --git a/chrome/renderer/resources/extensions/automation/automation_node.js b/chrome/renderer/resources/extensions/automation/automation_node.js
index b0ae6740a3e0a23c5d97280f2788b58b3ec0a948..47ae1ed7dfaddaeda7faaec3a6a36e2233db38c2 100644
--- a/chrome/renderer/resources/extensions/automation/automation_node.js
+++ b/chrome/renderer/resources/extensions/automation/automation_node.js
@@ -238,6 +238,8 @@ var GetHtmlAttribute = requireNative('automationInternal').GetHtmlAttribute;
  */
 var GetNameFrom = requireNative('automationInternal').GetNameFrom;
 
+var GetCustomActions = requireNative('automationInternal').GetCustomActions;
+
 var lastError = require('lastError');
 var logging = requireNative('logging');
 var utils = require('utils');
@@ -380,6 +382,10 @@ AutomationNodeImpl.prototype = {
     return GetNameFrom(this.treeID, this.id);
   },
 
+  get customActions() {
+    return GetCustomActions(this.treeID, this.id);
+  },
+
   doDefault: function() {
     this.performAction_('doDefault');
   },
@@ -1136,6 +1142,7 @@ utils.expose(AutomationNode, AutomationNodeImpl, {
       'root',
       'htmlAttributes',
       'nameFrom',
+      'customActions',
   ]),
 });