[gtk] (6 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:

  92274f9... macos: use CALayer and IOSurface for rendering
  38b9dab... macos: improve position and size during unmaximize
  1d93fe5... macos: avoid redisplay when changing frame
  d3b0323... macos: delay window resize until compute-size

Commits added to the branch:

  c3dad84... css: reduce overdraws from "textview > text"
  aa1be0f... macos: use CALayer and IOSurface for rendering
  39e4253... macos: improve position and size during unmaximize
  356673f... macos: avoid redisplay when changing frame
  480f601... macos: delay window resize until compute-size
  6f592a9... macos: delay showing window until buffer is received