[gtk] (2 commits) Non-fast-forward update to branch wip.win32.fixes

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'wip.win32.fixes' 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:

  5e63798... gskglcompiler.c: Force GLSL version 300 es as needed
  e75ad86... gdksurface-win32.c: Call gdk_surface_set_egl_native_window(
  0ab3ebb... gskglcompiler.c: Set version as appropriate for GLES 3.0+ c
  6d6744a... gskglcompiler.c: Some cleanups

Commits added to the branch:

  ca04455... gdksurface-win32.c: Call gdk_surface_set_egl_native_window(
  6f4e0a4... gskglcompiler.c: Force GLSL version 300 es as needed