Add a whitelist for chrome.fileSystem.requestFileSystem.

chrome/browser/chromeos/file_manager/app_id.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_FILE_MANAGER_APP_ID_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_APP_ID_H_
 
 namespace file_manager {
 
 // The file manager's app ID.
 //
 // Note that file_manager::kFileManagerAppId is a bit redundant but a shorter
 // name like kAppId would be cryptic inside "file_manager" namespace.
 const char kFileManagerAppId[] = "hhaomjibdihmijegdhdafkllkbggdgoj";
 
 // The video player's app ID.
 const char kVideoPlayerAppId[] = "jcgeabjmjgoblfofpppfkcoakmfobdko";
 
 // The gallery's app ID.
 const char kGalleryAppId[] = "nlkncpkkdoccmpiclbokaimcnedabhhm";
 
+// The audio player's app ID.
+const char kAudioPlayerAppId[] = "cjbfomnbifhcdnihkgipgfcihmgjfhbf";
+
+// The image loader extension's ID.
+const char kImageLoaderExtensionId[] = "pmfjbimdmchhbnneeidfognadeopoehp";
+
 }  // namespace file_manager
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_APP_ID_H_