Add Team Drive subtree to the directory list view.

ui/file_manager/externs/volume_info.js

Index: ui/file_manager/externs/volume_info.js
diff --git a/ui/file_manager/externs/volume_info.js b/ui/file_manager/externs/volume_info.js
index fb8684ec3825ee6b8e6bc529138d2a205187a652..a90a03bb8e690bfe0c3073d47f172ee386f35588 100644
--- a/ui/file_manager/externs/volume_info.js
+++ b/ui/file_manager/externs/volume_info.js
@@ -25,6 +25,13 @@ VolumeInfo.prototype.fileSystem;
 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>}}