The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ff8a5a59ddcf87c3955737847cf958b8dd8d4745

commit ff8a5a59ddcf87c3955737847cf958b8dd8d4745
Author: Michael Martis <martis@chromium.org>
Date: Fri Sep 01 07:13:39 2017

Removed logic for translate UI language override experiment.

The experiment has been disabled, so its logic is no longer required. Removing
it will simplify upcoming improvements to user language modeling.

Bug:  759432 
Change-Id: I2847d37c00b7d32641260f5f5ebad2f7ad4eba0a
Reviewed-on: https://chromium-review.googlesource.com/637434
Commit-Queue: Michael Martis <martis@chromium.org>
Reviewed-by: Rachel Blum <groby@chromium.org>
Cr-Commit-Position: refs/heads/master@{#499147}
[modify] https://crrev.com/ff8a5a59ddcf87c3955737847cf958b8dd8d4745/components/translate/core/browser/BUILD.gn
[delete] https://crrev.com/f721f259f771dab64ef5c7be0ee8b97961fd8e70/components/translate/core/browser/translate_experiment.cc
[delete] https://crrev.com/f721f259f771dab64ef5c7be0ee8b97961fd8e70/components/translate/core/browser/translate_experiment.h
[delete] https://crrev.com/f721f259f771dab64ef5c7be0ee8b97961fd8e70/components/translate/core/browser/translate_experiment_unittest.cc
[modify] https://crrev.com/ff8a5a59ddcf87c3955737847cf958b8dd8d4745/components/translate/core/browser/translate_manager.cc
[modify] https://crrev.com/ff8a5a59ddcf87c3955737847cf958b8dd8d4745/components/translate/core/browser/translate_prefs.cc
[modify] https://crrev.com/ff8a5a59ddcf87c3955737847cf958b8dd8d4745/components/translate/core/browser/translate_prefs.h