[gtk/gtk-3-24: 3/3] Merge branch 'wip/nobody/517-quartz-gl-context' into 'gtk-3-24'

[Ignacio Casal Quinteiro <icq src gnome org>]

commit c605a23346b2f922e8a509d4fdd4d5cb67df073d
Merge: ecf3431d3f f264e0dbf9
Author: Ignacio Casal Quinteiro <nacho resa gmail com>
Date:   Fri Mar 29 10:45:05 2019 +0000

    Merge branch 'wip/nobody/517-quartz-gl-context' into 'gtk-3-24'
    
    Quartz GLArea
    
    See merge request GNOME/gtk!146

 gdk/quartz/Makefile.am           |   1 +
 gdk/quartz/gdkdisplay-quartz.c   |   2 +
 gdk/quartz/gdkglcontext-quartz.c | 167 ++++++++++++++++++++++++++++++++++++++-
 gdk/quartz/gdkglcontext-quartz.h |  23 ++++++
 gdk/quartz/gdkquartzglcontext.h  |  45 +++++++++++
 gdk/quartz/gdkwindow-quartz.c    |   5 ++
 6 files changed, 239 insertions(+), 4 deletions(-)
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