Switch in box ChromeVox to use new background page.

chrome/browser/resources/chromeos/chromevox/chromevox.gyp

 # 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.
 
 {
   'conditions': [
     ['chromeos==1', {
       'variables': {
         # Whether to compress the 4 main ChromeVox scripts.
         'chromevox_compress_js%': '1',
@@ skipping 150 matching lines @@
           'variables': {
             'output_manifest_path': '<(chromevox_dest_dir)/manifest.json',
           },
           'includes': [ 'generate_manifest.gypi', ],
         },
         {
           'target_name': 'chromevox_manifest',
           'type': 'none',
           'variables': {
             'output_manifest_path': '<(chromevox_dest_dir)/manifest.json',
-            # TODO(dtseng): Flip this to 1 once ChromeVox Next is ready.
-            'is_chromevox_next': 0,
+            'is_chromevox_next': 1,
           },
           'includes': [ 'generate_manifest.gypi', ],
         },
         {
           'target_name': 'chromevox_guest_manifest',
           'type': 'none',
           'variables': {
             'output_manifest_path': '<(chromevox_dest_dir)/manifest_guest.json',
             'is_guest_manifest': 1,
-            # TODO(dtseng): Flip this to 1 once ChromeVox Next is ready.
-            'is_chromevox_next': 0,
+            'is_chromevox_next': 1,
           },
           'includes': [ 'generate_manifest.gypi', ],
         },
       ],
       'conditions': [
         ['chromevox_compress_js==1', {
           'targets': [
             {
               'target_name': 'chromevox1_content_script',
               'type': 'none',
@@ skipping 59 matching lines @@
                 '<(chromevox2_background_script_loader_file)',
               ],
               'includes': [ 'copy_js.gypi', ],
             },
           ],
         }],
       ],
     }],
   ],
 }