Temporarily disable extensions and sync while a profile is locked - Profiles Approach

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 911 matching lines @@
   },
   "screenlockPrivate": [{
     "platforms": ["chromeos"],
     "channel": "stable",
     "extension_types": ["platform_app"],
     "location": "component"
   }, {
     "platforms": ["mac", "win", "linux"],
     "channel": "stable",
     "extension_types": ["platform_app"],
+    "location": "component",
     "whitelist": [
       "lkegkdgachcnekllcdfkijonogckdnjo",  // API test
       "E13990DC5440B6E270503DA27A35762F423725C3"   // dogfood
     ]
   }],
   "screensaver": {
     "channel": "stable",
     "extension_types": ["legacy_packaged_app", "hosted_app", "platform_app"]
   },
   "sessions": {
@@ skipping 130 matching lines @@
   "webstorePrivate": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app", "hosted_app"],
     "whitelist": [
       "B44D08FD98F1523ED5837D78D0A606EA9D6206E5",  // Web Store
       "2653F6F6C39BC6EEBD36A09AFB92A19782FF7EB4",  // Enterprise Web Store
       "2779FA8B45841D61A37207CCFAC9CB393964FE5B"   // Login Proxy (prototype)
     ]
   }
 }