[gtk] (11 commits) Non-fast-forward update to branch wip/chergert/macos-iosurface

[Christian Hergert <chergert src gnome org>]

The branch 'wip/chergert/macos-iosurface' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  77b96f1... gdk/gl: add default_framebuffer to GdkGLContext
  9aea048... gsk/gl: use default_framebuffer in render job
  fddb14a... macos: use CALayer and IOSurface for rendering

Commits added to the branch:

  1fee30a... Update Basque translation (*)
  fe210fb... Update Slovenian translation (*)
  4cb599f... Update Slovenian translation (*)
  61c219a... gdk/gl: add default_framebuffer to GdkGLContext
  3d801c4... gsk/gl: use default_framebuffer in render job
  5860e79... macos: use input_region to specify tracking areas
  f8178bb... macos: delay resizing until next frame
  caad272... macos: ignore mouse events outside tracking area
  99d63e5... macos: improve position of window during unmaximize
  03084f1... macos: add helper to check if surface is opaque
  f721908... macos: use CALayer and IOSurface for rendering

(*) This commit already existed in another branch; no separate mail sent