The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3e315ac1d3658be34f264f7bd7210b6d96636669

commit 3e315ac1d3658be34f264f7bd7210b6d96636669
Author: Shu Chen <shuchen@google.com>
Date: Fri Dec 29 06:46:43 2017

Deprecates the merge-key-char-events flag.

Bug:  797550 
Change-Id: I3f47e5b7b86627dd3a356458e2ee1c4910121b6a
Reviewed-on: https://chromium-review.googlesource.com/844036
Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Commit-Queue: Shu Chen <shuchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#526365}
[modify] https://crrev.com/3e315ac1d3658be34f264f7bd7210b6d96636669/chrome/browser/about_flags.cc
[modify] https://crrev.com/3e315ac1d3658be34f264f7bd7210b6d96636669/chrome/browser/flag_descriptions.cc
[modify] https://crrev.com/3e315ac1d3658be34f264f7bd7210b6d96636669/chrome/browser/flag_descriptions.h
[modify] https://crrev.com/3e315ac1d3658be34f264f7bd7210b6d96636669/ui/base/ime/input_method_win.cc
[modify] https://crrev.com/3e315ac1d3658be34f264f7bd7210b6d96636669/ui/base/ui_base_switches.cc
[modify] https://crrev.com/3e315ac1d3658be34f264f7bd7210b6d96636669/ui/base/ui_base_switches.h