The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0bb8ab89b6e09f59380973531d04b4c67c172c0e

commit 0bb8ab89b6e09f59380973531d04b4c67c172c0e
Author: Sam McNally <sammc@chromium.org>
Date: Tue Sep 18 23:09:46 2018

Migrate some directory tree test helpers into remote_call.js

Bug:  883628 
Change-Id: I5f4d81dd1a1d269a33091748def79d20941f1eca
Reviewed-on: https://chromium-review.googlesource.com/1229638
Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Sam McNally <sammc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#592247}
[modify] https://crrev.com/0bb8ab89b6e09f59380973531d04b4c67c172c0e/ui/file_manager/integration_tests/file_manager/create_new_folder.js
[modify] https://crrev.com/0bb8ab89b6e09f59380973531d04b4c67c172c0e/ui/file_manager/integration_tests/file_manager/directory_tree_context_menu.js
[modify] https://crrev.com/0bb8ab89b6e09f59380973531d04b4c67c172c0e/ui/file_manager/integration_tests/remote_call.js

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/57ce6a168d6915d5fa5068a0682bb663830eca70

commit 57ce6a168d6915d5fa5068a0682bb663830eca70
Author: Sam McNally <sammc@chromium.org>
Date: Wed Sep 19 03:12:17 2018

Add an integration test for backing up photos to Drive.

In order to make the test pass:
- Change chrome.fileManagerPrivate.setEntryTag() to succeed but take no
  other action with DriveFS enabled; it won't be supported with DriveFS.
- Enable a mock SyncFileSystemService so the use of the syncFileSystem
  API can succeed locally.
- Add support for mounting a USB drive containing a DCIM directory with
  an image.

This test only exercises basic functionality:
- There is no previous photo backup history in the syncFileSystem.
- Images in the external drive are not duplicated in Drive.

Bug:  883628 
Change-Id: Ic5244de54bdd6f3fee0c82a356e7e530b85dba64
Reviewed-on: https://chromium-review.googlesource.com/1230193
Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Sam McNally <sammc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#592313}
[modify] https://crrev.com/57ce6a168d6915d5fa5068a0682bb663830eca70/chrome/browser/chromeos/extensions/file_manager/private_api_file_system.cc
[modify] https://crrev.com/57ce6a168d6915d5fa5068a0682bb663830eca70/chrome/browser/chromeos/file_manager/file_manager_browsertest.cc
[modify] https://crrev.com/57ce6a168d6915d5fa5068a0682bb663830eca70/chrome/browser/chromeos/file_manager/file_manager_browsertest_base.cc
[modify] https://crrev.com/57ce6a168d6915d5fa5068a0682bb663830eca70/ui/file_manager/integration_tests/file_manager/drive_specific.js