Enable networking.onc for stable channel

extensions/common/api/_permission_features.json

 // 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.
 
 // This features file defines permissions for extension APIs implemented
 // under src/extensions.
 // See chrome/common/extensions/api/_features.md to understand this file, as
 // well as feature.h, simple_feature.h, and feature_provider.h.
 
 // If you add a new platform_app permission please update the "stubs_app" test:
@@ skipping 280 matching lines @@
       "96FF2FFA5C9173C76D47184B3E86D267B37781DE",  // http://crbug.com/642141
       "0136FCB13DB29FD5CD442F56E59E53B61F1DF96F"   // http://crbug.com/642141
     ]
   },
   "networking.config": {
     "channel": "stable",
     "platforms": ["chromeos"],
     "extension_types": ["extension", "platform_app"]
   },
   "networking.onc": [{
-    "channel": "dev",
+    "channel": "stable",
     "extension_types": ["platform_app"],
     "platforms": ["chromeos"],
     "session_types": ["kiosk.autolaunched"]
   }, {
     "channel": "dev",
     "extension_types": ["extension", "legacy_packaged_app", "platform_app"],
     "platforms": ["chromeos", "mac", "win", "linux"],
     "whitelist": [
       "0DE0F05680A4A056BCEC864ED8DDA84296F82B40",  // http://crbug.com/434651
       "1C93BD3CF875F4A73C0B2A163BB8FBDA8B8B3D80",  // http://crbug.com/293683
@@ skipping 258 matching lines @@
   }],
   "webRequest": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app"]
    },
   "webRequestBlocking": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app"]
   }
 }