[gtk: 3/3] Merge branch 'rtl-margins' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

commit e1a308d15104f60a168e62a14215496250300e29
Merge: 141c725489 bbfaacb598
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jan 16 00:19:41 2021 +0000

    Merge branch 'rtl-margins' into 'master'
    
    Flip margin-start and -end in RTL
    
    Closes #3583
    
    See merge request GNOME/gtk!3081

 gtk/gtkwidget.c                    |  5 ++++-
 testsuite/reftests/box-flip.css    | 23 +++++++++++++++++++++++
 testsuite/reftests/box-flip.ref.ui | 28 ++++++++++++++++++++++++++++
 testsuite/reftests/box-flip.ui     | 30 ++++++++++++++++++++++++++++++
 4 files changed, 85 insertions(+), 1 deletion(-)
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