The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/fa5cecc6e5507dc0497b09a3295c9c467e0c64d5

commit fa5cecc6e5507dc0497b09a3295c9c467e0c64d5
Author: lgrey <lgrey@chromium.org>
Date: Thu Nov 03 20:15:41 2016

[Mac] Take Sierra RTL into account when laying out window buttons

Sierra reverses the window buttons when launching programs in RTL
mode. We calculate the size between window buttons based on the gap
between the close and miniaturize buttons, but when the buttons are
reversed this is incorrect. The result is a large gap between buttons,
pushing one offscreen (see image in bug.)

BUG= 662097 

Review-Url: https://codereview.chromium.org/2468373003
Cr-Commit-Position: refs/heads/master@{#429684}

[modify] https://crrev.com/fa5cecc6e5507dc0497b09a3295c9c467e0c64d5/chrome/browser/ui/cocoa/framed_browser_window.mm
[modify] https://crrev.com/fa5cecc6e5507dc0497b09a3295c9c467e0c64d5/chrome/browser/ui/cocoa/framed_browser_window_unittest.mm