Web expose FileSystemFileEntry, FileSystemDirectoryEntry and friends

chrome/common/extensions/api/image_writer_private.idl

 // 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.
 
 // Use the <code>chrome.image_writer</code> API to write images to
 // removable media.
 //
 // See the design doc for a detailed description of this API.
 // https://goo.gl/KzMEFq
 namespace imageWriterPrivate {
@@ skipping 75 matching lines @@
 
     // Write an image to the disk, prompting the user to supply the image from
     // a local file.  The callback will be called when the entire operation
     // completes, either successfully or on error.
     //
     // |storageUnitId|: The identifier for the storage unit
     // |fileEntry|: The FileEntry object of the image to be burned.
     // |callback|: The callback which signifies that the write operation has
     // been started by the system and provides a unique ID for this operation.
     static void writeFromFile(DOMString storageUnitId,
-                              [instanceOf=FileEntry] object fileEntry,
+                              [instanceOf=FileSystemFileEntry] object fileEntry,
                               WriteImageCallback callback);
 
     // Cancel a current write operation.
     //
     // |callback|: The callback which is triggered with the write is
     // successfully cancelled, passing the $(ref:ProgressInfo) of the operation at
     // the time it was cancelled.
     static boolean cancelWrite(WriteCancelCallback callback);
 
     // Destroys the partition table of a disk, effectively erasing it.  This is
@@ skipping 27 matching lines @@
 
     // Fires when a removable storage device is inserted.
     static void onDeviceInserted(RemovableStorageDevice device);
 
     // Fires when a removable storage device is removed.
     static void onDeviceRemoved(RemovableStorageDevice device);
   };
 
 };