Whitelist for autotest extension.

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 chrome/common/extensions/api/_features.md to understand this file, as
 // well as feature.h, simple_feature.h, and base_feature_provider.h.
 
 // If you add a new platform_app permission please update the "stubs_app" test:
@@ skipping 28 matching lines @@
       "5107DE9024C329EEA9C9A72D94C16723790C6422"   // Apps Developer Tool Dev.
     ]
   },
   "autofillPrivate": {
     "channel": "trunk",
     "extension_types": ["extension", "platform_app"],
     "location": "component"
   },
   "autotestPrivate": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app"],

[Devlin, 2016/11/17 18:14:05]

Do we still need this to work with legacy packaged apps, or can we remove this
entry?

[achuithb, 2016/11/17 22:34:48]

Done.

-    "location": "component"
+    "whitelist": [
+      "behllobkkfkfnphdnhnkndlbkcpglgmj"  // Autotest extension.

[Devlin, 2016/11/17 18:14:05]

This should be a hash.  See
https://chromium.googlesource.com/chromium/src/+/master/chrome/common/extensi...

[achuithb, 2016/11/17 22:34:48]

Done.

+    ]
   },
   "background": {
     "channel": "stable",
     "extension_types": [
       "platform_app", "extension", "legacy_packaged_app", "hosted_app"
     ]
   },
   "bookmarkManagerPrivate": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app"],
@@ skipping 879 matching lines @@
     "channel": "stable",
     "extension_types": ["platform_app"],
     "platforms": ["chromeos"],
     "whitelist": [
       "A948368FC53BE437A55FEB414106E207925482F5",  // Files app
       "8C726564C6DBE7380BAB388DE6CC7EC93EB44B06",  // Video player
       "5065C83E84321221675D20FBE4DC43C655CC8C6F"   // Files app tests
     ]
   }
 }