Web expose FileSystemFileEntry, FileSystemDirectoryEntry and friends

chrome/browser/extensions/api/media_galleries/media_galleries_api.cc

 // 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.
 
 // Implements the Chrome Extensions Media Galleries API.
 
 #include "chrome/browser/extensions/api/media_galleries/media_galleries_api.h"
 
 #include <stddef.h>
 
@@ skipping 419 matching lines @@
 
 void MediaGalleriesGetMediaFileSystemsFunction::ReturnGalleries(
     const std::vector<MediaFileSystemInfo>& filesystems) {
   std::unique_ptr<base::ListValue> list(
       ConstructFileSystemList(render_frame_host(), extension(), filesystems));
   if (!list.get()) {
     SendResponse(false);
     return;
   }
 
-  // The custom JS binding will use this list to create DOMFileSystem objects.
+  // The custom JS binding will use this list to create FileSystem objects.
   SetResult(std::move(list));
   SendResponse(true);
 }
 
 void MediaGalleriesGetMediaFileSystemsFunction::ShowDialog() {
   media_galleries::UsageCount(media_galleries::SHOW_DIALOG);
   WebContents* contents =
       ChromeExtensionFunctionDetails(this).GetOriginWebContents();
   if (!contents) {
     SendResponse(false);
@@ skipping 420 matching lines @@
     SendResponse(false);
     return;
   }
 
   gallery_watch_manager()->RemoveWatch(
       GetProfile(), extension_id(), gallery_pref_id);
   SendResponse(true);
 }
 
 }  // namespace extensions