Minimize the Classic API and enable it for Next

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

 // Copyright 2016 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 ChromeVox keyboard handler.
  */
 
 goog.provide('BackgroundKeyboardHandler');
 
@@ skipping 21 matching lines @@
    * Handles key down events.
    * @param {Event} evt The key down event to process.
    * @return {boolean} True if the default action should be performed.
    */
   onKeyDown: function(evt) {
     evt.stickyMode = cvox.ChromeVox.isStickyModeOn() && cvox.ChromeVox.isActive;
     if (cvox.ChromeVox.passThroughMode)
       return false;
 
     if (ChromeVoxState.instance.mode != ChromeVoxMode.CLASSIC &&
-        ChromeVoxState.instance.mode != ChromeVoxMode.NEXT_COMPAT &&
         !cvox.ChromeVoxKbHandler.basicKeyDownActionsListener(evt)) {
       evt.preventDefault();
       evt.stopPropagation();
       this.eatenKeyDowns_.add(evt.keyCode);
     }
     Output.forceModeForNextSpeechUtterance(cvox.QueueMode.FLUSH);
     return false;
   },
 
   /**
@@ skipping 21 matching lines @@
 
     return false;
   },
 
   /**
    * React to mode changes.
    * @param {ChromeVoxMode} newMode
    * @param {ChromeVoxMode?} oldMode
    */
   onModeChanged: function(newMode, oldMode) {
-    if (newMode == ChromeVoxMode.CLASSIC ||
-        newMode == ChromeVoxMode.NEXT_COMPAT) {
+    if (newMode == ChromeVoxMode.CLASSIC) {
       chrome.accessibilityPrivate.setKeyboardListener(false, false);
     } else {
       chrome.accessibilityPrivate.setKeyboardListener(
           true, cvox.ChromeVox.isStickyPrefOn);
     }
 
     if (newMode === ChromeVoxMode.NEXT ||
-        newMode === ChromeVoxMode.FORCE_NEXT ||
-        newMode === ChromeVoxMode.NEXT_COMPAT) {
+        newMode === ChromeVoxMode.FORCE_NEXT) {
       // Switching out of classic, classic compat, or uninitialized
       // (on startup).
       window['prefs'].switchToKeyMap('keymap_next');
     } else if (oldMode &&
         oldMode != ChromeVoxMode.CLASSIC &&
         oldMode != ChromeVoxMode.CLASSIC_COMPAT) {
       // Switching out of next. Intentionally do nothing when switching out of
       // an uninitialized |oldMode|.
       window['prefs'].switchToKeyMap('keymap_classic');
     }
   }
 };