Small cleanups in automation_node.js.

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 838de6e459d89495520d0c7c29de5419a8522e17..0ae0815efc93e7d8a5f8cd4499673a9029a8e88f 100644
--- a/chrome/renderer/resources/extensions/automation/automation_node.js
+++ b/chrome/renderer/resources/extensions/automation/automation_node.js
@@ -72,15 +72,15 @@ AutomationNodeImpl.prototype = {
     this.performAction_('doDefault');
   },
 
-  focus: function(opt_callback) {
+  focus: function() {
     this.performAction_('focus');
   },
 
-  makeVisible: function(opt_callback) {
+  makeVisible: function() {
     this.performAction_('makeVisible');
   },
 
-  setSelection: function(startIndex, endIndex, opt_callback) {
+  setSelection: function(startIndex, endIndex) {
     this.performAction_('setSelection',
                         { startIndex: startIndex,
                           endIndex: endIndex });
@@ -279,6 +279,14 @@ AutomationRootNodeImpl.prototype = {
     this.axNodeDataCache_[id] = undefined;
   },
 
+  load: function(callback) {
+    // TODO(dtseng/aboxhall): Implement.
+    if (!this.loaded)
+      throw 'Unsupported state: root node is not loaded.';
+
+    callback();

[aboxhall, 2014/07/07 17:24:24]

Remember that we need to schedule the callback rather than calling it
re-entrantly.

+  },
+
   update: function(data) {
     var didUpdateRoot = false;