Whitelist instead of restricting to components for fileBrowserPrivate.

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 405 matching lines @@
     ]
   },
   "fileBrowserHandler": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app", "platform_app"],
     "platforms": ["chromeos"]
   },
   "fileManagerPrivate": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app", "platform_app"],
-    "location": "component",
     "platforms": ["chromeos"],
     "whitelist": [
-      "397F221E63F86BE34C30165613E95B6CC8D22A52"  // http://crbug.com/415846
+      "74E2D32A61B08D29521A8C4E360F581DE78F5CA5",  // Image loader
+      "A948368FC53BE437A55FEB414106E207925482F5",  // Files app
+      "A13373C881097323F4DEF392474BE2E28DA6D4ED",  // Gallery
+      "8C726564C6DBE7380BAB388DE6CC7EC93EB44B06",  // Video player
+      "5065C83E84321221675D20FBE4DC43C655CC8C6F",  // Files app tests
+      "397F221E63F86BE34C30165613E95B6CC8D22A52"   // http://crbug.com/415846
     ]
   },
   "fileSystem": [{
     "channel": "stable",
     "extension_types": ["platform_app"]
   },{
     "channel": "stable",
     "extension_types": ["extension"],
     "whitelist": [
       "2FC374607C2DF285634B67C64A2E356C607091C3",  // Quickoffice
@@ skipping 621 matching lines @@
   },
   "webRequest": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app"]
   },
   "webRequestBlocking": {
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app"]
   }
 }