The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/82e13c27cd285f191257d4c719c2ee82c77f6857

commit 82e13c27cd285f191257d4c719c2ee82c77f6857
Author: Noel Gordon <noel@chromium.org>
Date: Mon Nov 19 23:05:41 2018

Closure compile providers_model_unittest

 - use let and const and add doc comment annotations.
 - update LoadTimeData fake to include DRIVE_OFFLINE_COLLECTION_LABEL
   and DRIVE_SHARED_WITH_ME_COLLECTION_LABEL to avoid JS exceptions
   about them being missing / undefined when running the unittest.
 - rm duplicate NOT_MOUNTED_SINGLE_PROVIDING_EXTENSION definition.
 - use VolumeManagerCommon.Source types rather than bare strings.
 - create & install mock chrome.fileManagerPrivate.
 - create & install mock VolumeManager.
 - run JS formatter over the code.

Bug:  905933 
Change-Id: I7dabbb8ff72f79d290eaeffcb941280715f93660
Reviewed-on: https://chromium-review.googlesource.com/c/1343397
Commit-Queue: Noel Gordon <noel@chromium.org>
Reviewed-by: Stuart Langley <slangley@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609487}
[modify] https://crrev.com/82e13c27cd285f191257d4c719c2ee82c77f6857/chrome/browser/chromeos/file_manager/file_manager_jstest.cc
[modify] https://crrev.com/82e13c27cd285f191257d4c719c2ee82c77f6857/ui/file_manager/file_manager/foreground/js/BUILD.gn
[delete] https://crrev.com/03cf59212a842c0c265aac64374a1ed40aca50e2/ui/file_manager/file_manager/foreground/js/providers_model_unittest.html
[modify] https://crrev.com/82e13c27cd285f191257d4c719c2ee82c77f6857/ui/file_manager/file_manager/foreground/js/providers_model_unittest.js