Disable next compatibility mode for ChromeVox on dev channel

chrome/browser/resources/chromeos/chromevox/cvox2/background/background.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 The entry point for all ChromeVox2 related code for the
  * background page.
  */
 
 goog.provide('Background');
@@ skipping 150 matching lines @@
       this.onAccessibilityGesture_);
 
   /**
    * Maps a non-desktop root automation node to a range position suitable for
    *     restoration.
    * @type {WeakMap<AutomationNode, cursors.Range>}
    * @private
    */
   this.focusRecoveryMap_ = new WeakMap();
 
+  chrome.automation.getDesktop(function(desktop) {
+    /** @type {string} */
+    this.chromeChannel_ = desktop.chromeChannel;
+  }.bind(this));
+
   // Record a metric with the mode we're in on startup.
   var useNext = localStorage['useNext'] !== 'false';
   chrome.metricsPrivate.recordValue(
       { metricName: 'Accessibility.CrosChromeVoxNext',
         type: chrome.metricsPrivate.MetricTypeType.HISTOGRAM_LINEAR,
         min: 1,  // According to histogram.h, this should be 1 for enums.
         max: 2,  // Maximum should be exclusive.
         buckets: 3 },  // Number of buckets: 0, 1 and overflowing 2.
       useNext ? 1 : 0);
 };
@@ skipping 25 matching lines @@
   'swipeUp1': 'previousLine',
   'swipeDown1': 'nextLine',
   'swipeLeft1': 'previousObject',
   'swipeRight1': 'nextObject',
   'swipeUp2': 'jumpToTop',
   'swipeDown2': 'readFromHere',
 };
 
 Background.prototype = {
   __proto__: ChromeVoxState.prototype,
+
   /**
    * Maps the last node with range in a given root.
    * @type {WeakMap<AutomationNode>}
    */
   get focusRecoveryMap() {
     return this.focusRecoveryMap_;
   },
 
   /**
    * @override
@@ skipping 14 matching lines @@
       return useNext ? ChromeVoxMode.FORCE_NEXT : ChromeVoxMode.CLASSIC;
 
     // Closure complains, but clearly, |target| is not null.
     var topLevelRoot =
         AutomationUtil.getTopLevelRoot(/** @type {!AutomationNode} */(target));
     if (!topLevelRoot)
       return useNext ? ChromeVoxMode.FORCE_NEXT :
           ChromeVoxMode.CLASSIC_COMPAT;
 
     var nextSite = this.isWhitelistedForNext_(topLevelRoot.docUrl);
-    var nextCompat = this.nextCompatRegExp_.test(topLevelRoot.docUrl);
+    var nextCompat = this.nextCompatRegExp_.test(topLevelRoot.docUrl) &&
+        this.chromeChannel_ != 'dev';
     var classicCompat =
         this.isWhitelistedForClassicCompat_(topLevelRoot.docUrl);
     if (nextCompat && useNext)
       return ChromeVoxMode.NEXT_COMPAT;
     else if (classicCompat && !useNext)
       return ChromeVoxMode.CLASSIC_COMPAT;
     else if (nextSite)
       return ChromeVoxMode.NEXT;
     else if (!useNext)
       return ChromeVoxMode.CLASSIC;
@@ skipping 299 matching lines @@
     }
     return true;
   },
 
   /**
    * Returns true if the url should have Classic running.
    * @return {boolean}
    * @private
    */
   shouldEnableClassicForUrl_: function(url) {
-    return this.nextCompatRegExp_.test(url) ||
+    return (this.nextCompatRegExp_.test(url) &&this.chromeChannel_ != 'dev') ||
         (this.mode != ChromeVoxMode.FORCE_NEXT &&
          !this.isBlacklistedForClassic_(url) &&
          !this.isWhitelistedForNext_(url));
   },
 
   /**
    * Compat mode is on if any of the following are true:
    * 1. a url is blacklisted for Classic.
    * 2. the current range is not within web content.
    * @param {string} url
@@ skipping 255 matching lines @@
   return new RegExp('^(' + globs.map(function(glob) {
     return glob.replace(/[.+^$(){}|[\]\\]/g, '\\$&')
         .replace(/\*/g, '.*')
         .replace(/\?/g, '.');
   }).join('|') + ')$');
 };
 
 new Background();
 
 });  // goog.scope