Tracking bug for feature behind the flag: https://bugs.chromium.org/p/chromium/issues/detail?id=841640

From our discussions today, sounds like this should be more like M72 :)

Flag is being renamed to disable-new-files-app-navigation

Doing this cleanup before starting changes to support the new My files allowing folders/files.

Issue 880132 has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/40364c8ffc40b35c55deef3c0be44b65a69e217f

commit 40364c8ffc40b35c55deef3c0be44b65a69e217f
Author: Luciano Pacheco <lucmult@chromium.org>
Date: Thu Oct 25 01:00:07 2018

Remove flag disable-new-files-app-navigation 1 of 2 CLs

Remove from NavigationListModel and fix its tests.

Remove drive expanded default from DirectoryTree.

Remove test helper and fix tests.

There is no change in behaviour for users, NavigationListModel changes
in tests are due to new directory tree behaviour introduced with "My
files", where shortcuts are sorted by their label, instead of by
order they were added.

Bug:  850348 
Change-Id: I0220d46459e54331493775b1275007ece3db2311
Reviewed-on: https://chromium-review.googlesource.com/c/1297854
Reviewed-by: Joel Hockey <joelhockey@chromium.org>
Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#602550}
[modify] https://crrev.com/40364c8ffc40b35c55deef3c0be44b65a69e217f/ui/file_manager/file_manager/foreground/js/file_manager.js
[modify] https://crrev.com/40364c8ffc40b35c55deef3c0be44b65a69e217f/ui/file_manager/file_manager/foreground/js/navigation_list_model.js
[modify] https://crrev.com/40364c8ffc40b35c55deef3c0be44b65a69e217f/ui/file_manager/file_manager/foreground/js/navigation_list_model_unittest.js
[modify] https://crrev.com/40364c8ffc40b35c55deef3c0be44b65a69e217f/ui/file_manager/file_manager/foreground/js/ui/directory_tree.js
[modify] https://crrev.com/40364c8ffc40b35c55deef3c0be44b65a69e217f/ui/file_manager/integration_tests/file_manager/create_new_folder.js
[modify] https://crrev.com/40364c8ffc40b35c55deef3c0be44b65a69e217f/ui/file_manager/integration_tests/file_manager/directory_tree_context_menu.js
[modify] https://crrev.com/40364c8ffc40b35c55deef3c0be44b65a69e217f/ui/file_manager/integration_tests/file_manager/drive_specific.js
[modify] https://crrev.com/40364c8ffc40b35c55deef3c0be44b65a69e217f/ui/file_manager/integration_tests/file_manager/metadata.js
[modify] https://crrev.com/40364c8ffc40b35c55deef3c0be44b65a69e217f/ui/file_manager/integration_tests/remote_call.js

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bfc9a40012bfaf381fd465a190cc2d0643bfec57

commit bfc9a40012bfaf381fd465a190cc2d0643bfec57
Author: Luciano Pacheco <lucmult@chromium.org>
Date: Thu Oct 25 01:38:24 2018

Remove flag disable-new-files-app-navigation 2 of 2 CLs

Remove flag.

Remove UI helper that reads the flag.

No changes in behaviour, flag usage was removed on crrev.com/c/1297854.

Bug:  850348 
Change-Id: Ibc8af3e1eeecff49900fbb0fc918d686f7c4f2dc
Reviewed-on: https://chromium-review.googlesource.com/c/1297855
Reviewed-by: Joel Hockey <joelhockey@chromium.org>
Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#602563}
[modify] https://crrev.com/bfc9a40012bfaf381fd465a190cc2d0643bfec57/chrome/browser/about_flags.cc
[modify] https://crrev.com/bfc9a40012bfaf381fd465a190cc2d0643bfec57/chrome/browser/flag_descriptions.cc
[modify] https://crrev.com/bfc9a40012bfaf381fd465a190cc2d0643bfec57/chrome/browser/flag_descriptions.h
[modify] https://crrev.com/bfc9a40012bfaf381fd465a190cc2d0643bfec57/chromeos/chromeos_switches.cc
[modify] https://crrev.com/bfc9a40012bfaf381fd465a190cc2d0643bfec57/chromeos/chromeos_switches.h
[modify] https://crrev.com/bfc9a40012bfaf381fd465a190cc2d0643bfec57/ui/file_manager/file_manager/common/js/util.js

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e0aeb8263754c1bec641c5c291bc9000bf53ebfc

commit e0aeb8263754c1bec641c5c291bc9000bf53ebfc
Author: Luciano Pacheco <lucmult@chromium.org>
Date: Tue Oct 30 10:16:44 2018

Remove dead code

Remove method flatNavigationItems_ that should have been removed in
crrev.com/c/1297854 because since then this method isn't used anymore.

Bug:  850348 
Change-Id: I598d9fa5b89c2897c9e1f6126663b8da2f932619
Reviewed-on: https://chromium-review.googlesource.com/c/1306952
Reviewed-by: Sam McNally <sammc@chromium.org>
Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603849}
[modify] https://crrev.com/e0aeb8263754c1bec641c5c291bc9000bf53ebfc/ui/file_manager/file_manager/foreground/js/navigation_list_model.js