Reland fix ChromeVox Next compile.

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

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js b/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
index e39f303280fce88a6ef6e1c43c99bf90cece6ee4..2dccbe56bcffe8212ae119632275c570d5afc646 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
@@ -21,28 +21,31 @@ cvox2.global.accessibility =
 
 /**
  * ChromeVox2 background page.
+ * @constructor
  */
 cvox2.Background = function() {
   /**
    * A list of site substring patterns to use with ChromeVox next. Keep these
    * strings relatively specific.
    * @type {!Array.<string>}
+   * @private
    */
   this.whitelist_ = ['http://www.chromevox.com/', 'chromevox_next_test'];
 
-  /** @type {cvox.TabsApiHandler} @private */
+  /**
+   * @type {cvox.TabsApiHandler}
+   * @private
+   */
   this.tabsHandler_ = new cvox.TabsApiHandler(cvox.ChromeVox.tts,
                                               cvox.ChromeVox.braille,
                                               cvox.ChromeVox.earcons);
 
-  /** @type {AutomationNode} @private */
+  /**
+   * @type {chrome.automation.AutomationNode}
+   * @private
+   */
   this.currentNode_ = null;
 
-  /** @type {cvox.TabsApiHandler} @private */
-  this.tabsHandler_ = new cvox.TabsApiHandler(cvox.ChromeVox.tts,
-                                              cvox.ChromeVox.braille,
-                                              cvox.ChromeVox.earcons);
-
   // Only needed with unmerged ChromeVox classic loaded before.
   cvox2.global.accessibility.setAccessibilityEnabled(false);
 
@@ -73,7 +76,7 @@ cvox2.Background.prototype = {
 
       if (!this.isWhitelisted_(tab.url)) {
         chrome.commands.onCommand.removeListener(this.onGotCommand);
-        cvox.ChromeVox.background.injectChromeVoxIntoTabs([tab], true);
+        cvox.ChromeVox.injectChromeVoxIntoTabs([tab], true);
         return;
       }
 
@@ -88,7 +91,7 @@ cvox2.Background.prototype = {
 
   /**
    * Handles all setup once a new automation tree appears.
-   * @param {AutomationTree} tree The new automation tree.
+   * @param {chrome.automation.AutomationNode} root
    */
   onGotTree: function(root) {
     // Register all automation event listeners.
@@ -142,7 +145,7 @@ cvox2.Background.prototype = {
         pred = cvox2.AutomationPredicates.link;
         break;
       case 'nextElement':
-        current = current.role == chrome.automation.RoleType.inlineTextBox ?
+        current = current.role == 'inlineTextBox' ?

[Peter Lundblad, 2014/10/03 12:03:53]

nit: keep using the exposed enum value.

             current.parent() : current;
         current = cvox2.AutomationUtil.findNextNode(current,
             cvox2.Dir.FORWARD,
@@ -150,7 +153,7 @@ cvox2.Background.prototype = {
         current = current ? current.parent() : current;
         break;
       case 'previousElement':
-        current = current.role == chrome.automation.RoleType.inlineTextBox ?
+        current = current.role == 'inlineTextBox' ?

[Peter Lundblad, 2014/10/03 12:03:53]

nit: use the exposed enum.

             current.parent() : current;
         current = cvox2.AutomationUtil.findNextNode(current,
             cvox2.Dir.BACKWARD,