Wire up an api to darken screen for accessibility

chrome/browser/resources/chromeos/chromevox/cvox2/background/output.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 Provides output services for ChromeVox.
  */
 
 goog.provide('Output');
 goog.provide('Output.EventType');
 
 goog.require('AutomationTreeWalker');
 goog.require('EarconEngine');
 goog.require('Spannable');
-goog.require('Stubs');
 goog.require('constants');
 goog.require('cursors.Cursor');
 goog.require('cursors.Range');
 goog.require('cursors.Unit');
 goog.require('cvox.AbstractEarcons');
 goog.require('cvox.ChromeVox');
 goog.require('cvox.NavBraille');
 goog.require('cvox.TtsCategory');
 goog.require('cvox.ValueSelectionSpan');
 goog.require('cvox.ValueSpan');
@@ skipping 1850 matching lines @@
   /**
    * Gets the output buffer for braille.
    * @return {!Spannable}
    */
   get brailleOutputForTest() {
     return this.mergeBraille_(this.brailleBuffer_);
   }
 };
 
 });  // goog.scope