Whitelisting Shout Out extension for chrome.copresence.

chrome/common/extensions/api/_permission_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 permissions for extension APIs 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 338 matching lines @@
       "whitelist": [
         "AFA728615D3A82D4017BDECEE86978543194D198",  // http://crbug.com/387999
         "0C0426C12F94156F330FFAF346A976BA8878DE78",  // http://crbug.com/387999
         "1C93BD3CF875F4A73C0B2A163BB8FBDA8B8B3D80",  // http://crbug.com/389230
         "A3BC37E2148AC4E99BE4B16AF9D42DD1E592BBBE",  // http://crbug.com/389230
         "E703483CEF33DEC18B4B6DD84B5C776FB9182BDB",  // http://crbug.com/389230
         "307E96539209F95A1A8740C713E6998A73657D96",  // http://crbug.com/389230
         "4F25792AF1AA7483936DE29C07806F203C7170A0",  // http://crbug.com/407693
         "BD8781D757D830FC2E85470A1B6E8A718B7EE0D9",  // http://crbug.com/407693
         "4AC2B6C63C6480D150DFDA13E4A5956EB1D0DDBB",  // http://crbug.com/407693
-        "81986D4F846CEDDDB962643FA501D1780DD441BB"   // http://crbug.com/407693
+        "81986D4F846CEDDDB962643FA501D1780DD441BB",  // http://crbug.com/407693
+        "FF78670081967CE21DB86A04AD94A0498F01E20A"   // http://crbug.com/409192
       ]
     }
   ],
   "copresencePrivate": {
     "channel": "stable",
     "extension_types": ["extension"],
     "location": "component",
     "whitelist": [
       "AFA728615D3A82D4017BDECEE86978543194D198"  // Whispernet Proxy
     ]
@@ skipping 831 matching lines @@
     // Only allowed for whitelisted extensions until all the caveats are
     // addressed. Tracked in crbug/285151.
     "channel": "stable",
     "extension_types": ["extension"],
     "location": "component",
     "whitelist": [
       "D519188F86D9ACCEE0412007B227D9936EB9676B"  // GAIA Component Extension
     ]
   }]
 }