Add Team Drive subtree to the directory list view.

ui/file_manager/externs/volume_info.js

 // Copyright 2016 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.
 
 /**
  * Represents each volume, such as "drive", "download directory", each "USB
  * flush storage", or "mounted zip archive" etc.
  * @interface
  */
 function VolumeInfo() {};
 
 /** @type {VolumeManagerCommon.VolumeType} */
 VolumeInfo.prototype.volumeType;
 
 /** @type {string} */
 VolumeInfo.prototype.volumeId;
 
 /** @type {FileSystem} */
 VolumeInfo.prototype.fileSystem;
 
 /**
  * Display root path. It is null before finishing to resolve the entry.
  * @type {DirectoryEntry}
  */
 VolumeInfo.prototype.displayRoot;
 
 /**
+ * The display root path of Team Drives directory. It is null before finishing
+ * to resolve the entry. Valid only for Drive volume.
+ * @type {DirectoryEntry}
+ */
+VolumeInfo.prototype.teamDriveDisplayRoot;
+
+/**
  * The volume's fake entries such as Recent, Offline, Shared with me, etc...
  * in Google Drive.
  * @type {Object<!FakeEntry>}}
  */
 VolumeInfo.prototype.fakeEntries;
 
 /**
  * This represents if the mounting of the volume is successfully done or not.
  * (If error is empty string, the mount is successfully done)
  * @type {(string|undefined)}
@@ skipping 60 matching lines @@
  * Starts resolving the display root and obtains it.  It may take long time for
  * Drive. Once resolved, it is cached.
  *
  * @param {function(!DirectoryEntry)=} opt_onSuccess Success callback with the
  *     display root directory as an argument.
  * @param {function(*)=} opt_onFailure Failure callback.
  * @return {!Promise.<!DirectoryEntry>}
  */
 VolumeInfo.prototype.resolveDisplayRoot = function(
     opt_onSuccess, opt_onFailure) {};