Whitelist a few more app IDs for mediaGalleriesPrivate and musicManagerPrivate.

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 666 matching lines @@
     "channel": "stable",
     "extension_types": [ "platform_app" ]
   },
   // TODO(thestig) Remove this as part of http://crbug.com/166950
   "mediaGalleriesPrivate": {
     "channel": "stable",
     "extension_types": [ "platform_app" ],
     "whitelist": [
       "4B1D0E19C6C43C008C44A8278C8B5BFE15ABEB3C",
       "F7FA7ABC1ECB89BA8EE6656847EFABBF43BB9BCA",
-      "4FE45FA56EF6A25FDE8C302C44045CA9CE8A605A"
+      "4FE45FA56EF6A25FDE8C302C44045CA9CE8A605A",
+      "3D14248405B8A59043420AAC160077C99E7788A9",
+      "A6C87307BBE5886CC5F1393025000E2FE8060BF2",
+      "3407516021EA3669C0EC8E65E6B9837E5A521B9C"
     ]
   },
   "mediaPlayerPrivate": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app", "platform_app"],
     "location": "component",
     "platforms": ["chromeos"]
   },
   "metricsPrivate": {
     "channel": "stable",
@@ skipping 38 matching lines @@
       "16CA7A47AAE4BE49B1E75A6B960C3875E945B264"   // Google Cast Stable
     ]
   },
   "musicManagerPrivate": {
     "channel": "stable",
     "extension_types": ["platform_app"],
     "whitelist": [
       "4B1D0E19C6C43C008C44A8278C8B5BFE15ABEB3C", // Music Manager
       "B8F61FD1B25DE03706DBB8906A73261E4DBB992A", // Test
       "F7FA7ABC1ECB89BA8EE6656847EFABBF43BB9BCA",
-      "4FE45FA56EF6A25FDE8C302C44045CA9CE8A605A"
+      "4FE45FA56EF6A25FDE8C302C44045CA9CE8A605A",
+      "3D14248405B8A59043420AAC160077C99E7788A9",
+      "A6C87307BBE5886CC5F1393025000E2FE8060BF2",
+      "3407516021EA3669C0EC8E65E6B9837E5A521B9C"
     ]
   },
   "nativeMessaging": {
     "channel": "stable",
     "extension_types": [
       "extension", "legacy_packaged_app", "platform_app"
     ]
   },
   "networkingPrivate": {
     "channel": "stable",
@@ skipping 339 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
     ]
   }]
 }