The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/49226d7b61bcb2ff8228fbeeefbe62923d1a2918

commit 49226d7b61bcb2ff8228fbeeefbe62923d1a2918
Author: Leonard Grey <lgrey@chromium.org>
Date: Fri Dec 07 21:47:42 2018

Remove MacRTL flag and associated machinery

Also removes some obsolete Cocoa l10n helper functions.

Bug:  912132 
Change-Id: I0157f1ea6e615a16e973c2ad283fa35d1cb644bf
Reviewed-on: https://chromium-review.googlesource.com/c/1367906
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Leonard Grey <lgrey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614827}
[modify] https://crrev.com/49226d7b61bcb2ff8228fbeeefbe62923d1a2918/chrome/browser/about_flags.cc
[modify] https://crrev.com/49226d7b61bcb2ff8228fbeeefbe62923d1a2918/chrome/browser/flag_descriptions.cc
[modify] https://crrev.com/49226d7b61bcb2ff8228fbeeefbe62923d1a2918/chrome/browser/flag_descriptions.h
[modify] https://crrev.com/49226d7b61bcb2ff8228fbeeefbe62923d1a2918/chrome/browser/ui/cocoa/l10n_util.h
[modify] https://crrev.com/49226d7b61bcb2ff8228fbeeefbe62923d1a2918/chrome/browser/ui/cocoa/l10n_util.mm
[modify] https://crrev.com/49226d7b61bcb2ff8228fbeeefbe62923d1a2918/chrome/common/chrome_features.cc
[modify] https://crrev.com/49226d7b61bcb2ff8228fbeeefbe62923d1a2918/chrome/common/chrome_features.h