The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/21d97ebaaa07d93da8d32889c673ffa21f734139

commit 21d97ebaaa07d93da8d32889c673ffa21f734139
Author: spqchan <spqchan@chromium.org>
Date: Thu Sep 06 19:45:44 2018

[Mac] Fix Text Suggestions Touch Bar Out of Range Issue

It's possible for the TextSuggestionsTouchBarController to receive
a selection range that is out of the text bounds. This CL fixes the
issue by replacing the range with an empty one if it is out of bounds.

This CL also makes sure that gfx::Range::ToNSRange() gets used, since
gfx::Range() can potentially be reversed.

Bug:  880642 , 872929
Change-Id: I4acc63b80cdf107de2ba340bb277e3e38084ff52
Reviewed-on: https://chromium-review.googlesource.com/1207575
Commit-Queue: Sarah Chan <spqchan@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589247}
[modify] https://crrev.com/21d97ebaaa07d93da8d32889c673ffa21f734139/chrome/browser/ui/cocoa/touchbar/text_suggestions_touch_bar_controller.mm
[modify] https://crrev.com/21d97ebaaa07d93da8d32889c673ffa21f734139/chrome/browser/ui/cocoa/touchbar/text_suggestions_touch_bar_controller_browsertest.mm

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/034357d76db26da2445dfc18960e0e6a1cfebe92

commit 034357d76db26da2445dfc18960e0e6a1cfebe92
Author: spqchan <spqchan@chromium.org>
Date: Tue Sep 11 15:16:59 2018

[Mac] Fix Text Suggestions Touch Bar Out of Range Issue

It's possible for the TextSuggestionsTouchBarController to receive
a selection range that is out of the text bounds. This CL fixes the
issue by replacing the range with an empty one if it is out of bounds.

This CL also makes sure that gfx::Range::ToNSRange() gets used, since
gfx::Range() can potentially be reversed.

Bug:  880642 , 872929
Change-Id: I4acc63b80cdf107de2ba340bb277e3e38084ff52
Reviewed-on: https://chromium-review.googlesource.com/1207575
Commit-Queue: Sarah Chan <spqchan@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#589247}(cherry picked from commit 21d97ebaaa07d93da8d32889c673ffa21f734139)
Reviewed-on: https://chromium-review.googlesource.com/1219946
Cr-Commit-Position: refs/branch-heads/3538@{#271}
Cr-Branched-From: 79f7c91a2b2a2932cd447fa6f865cb6662fa8fa6-refs/heads/master@{#587811}
[modify] https://crrev.com/034357d76db26da2445dfc18960e0e6a1cfebe92/chrome/browser/ui/cocoa/touchbar/text_suggestions_touch_bar_controller.mm
[modify] https://crrev.com/034357d76db26da2445dfc18960e0e6a1cfebe92/chrome/browser/ui/cocoa/touchbar/text_suggestions_touch_bar_controller_browsertest.mm