[gtk] (10 commits) Non-fast-forward update to branch wip/otte/gleanup

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/gleanup' 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:

  c16b23a... gdk: Add gdk_gl_context_is_compatible()
  8db0416... gdk: Add a private struct to GdkDisplay
  4f9de4c... gdk: Allow GdkDrawContext with a %NULL surface
  1803273... wayland: Move fbconfig into the display
  99e7d19... wayland: Don't pass GL config to get_egl_surface()
  6b63a0d... gdk: Add GdkDisplay::init_gl vfunc
  753204a... gdk: Require EGL version 1.4 across the board

Commits added to the branch:

  333879b... gdk: Add a private struct to GdkDisplay
  faacdeb... gdk: Allow GdkDrawContext with a %NULL surface
  94fc080... wayland: Move fbconfig into the display
  4a12047... wayland: Don't pass GL config to get_egl_surface()
  9479e85... gdk: Add GdkDisplay::init_gl vfunc
  662b246... gdk: Require EGL version 1.4 across the board
  135a124... ngl: Store the shared driver in the display
  e36a483... gdk: Add gdk_gl_context_is_shared()
  bf90ce0... gl: Store the context::in-frame state in the current contex
  af5bfd1... gdk: Get rid of paint contexts