Whitelist the internal hotrod apps.

chrome/common/extensions/api/_manifest_features.json

 // Copyright (c) 2012 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.
 
 // This features file defines manifest keys implemented under src/chrome.
 // See extensions/common/features/* to understand this file, in particular
 // feature.h, simple_feature.h, and base_feature_provider.h.
 
 // To add a new whitelisted ID, SHA-1 it and force it to uppercase. In Bash:
 //
@@ skipping 44 matching lines @@
     "platforms": ["chromeos", "win", "mac"]
   }, {
     "channel": "stable",
     "extension_types": ["platform_app"],
     "platforms": ["linux"],
     "whitelist": [
       "9E287A8257E58EFB13E89C86A4B75A3AC4B058D8",  // unit_tests browser_tests
       "1C93BD3CF875F4A73C0B2A163BB8FBDA8B8B3D80",  // http://crbug.com/396117
       "A3BC37E2148AC4E99BE4B16AF9D42DD1E592BBBE",  // http://crbug.com/396117
       "E703483CEF33DEC18B4B6DD84B5C776FB9182BDB",  // http://crbug.com/396117
-      "307E96539209F95A1A8740C713E6998A73657D96"   // http://crbug.com/396117
+      "307E96539209F95A1A8740C713E6998A73657D96",  // http://crbug.com/396117
+      "4F25792AF1AA7483936DE29C07806F203C7170A0",  // http://crbug.com/407693
+      "BD8781D757D830FC2E85470A1B6E8A718B7EE0D9",  // http://crbug.com/407693
+      "4AC2B6C63C6480D150DFDA13E4A5956EB1D0DDBB",  // http://crbug.com/407693
+      "81986D4F846CEDDDB962643FA501D1780DD441BB"   // http://crbug.com/407693
     ]
   }],
   "browser_action": {
     "channel": "stable",
     "extension_types": ["extension"]
   },
   "chrome_settings_overrides": {
     "channel": "stable",
     "extension_types": ["extension"],
     "platforms": ["win"]
@@ skipping 327 matching lines @@
   },
   "url_handlers": {
     "channel": "stable",
     "extension_types": ["platform_app"]
   },
   "version": {
     "channel": "stable",
     "extension_types": "all"
   }
 }