[gtk] (20 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:

  bf7c5a2... demos/gtk-demo|widget-factory: Temporarily disable gui_app 
  773deaf... media/gstreamer: Support using GL for video for Windows
  66f0139... gtkgstsink.c: Support EGL on Windows as well
  b70dfd4... gtkgstsink.c: Tell GstGL winsys type and API if needed

Commits added to the branch:

  cb1babe... ngl: Add padding between cached glyphs (*)
  81e0206... ngl: Be consistent about padding (*)
  66b4f0c... ngl: Reuse texture coordinates (*)
  04bac8e... testsuite: Run some installed tests exclusively (*)
  df28a57... Merge branch 'matthiasc/for-master' into 'master' (*)
  d56711b... listitemwidget: Have .activatable style class if the item i (*)
  45b8576... Merge branch 'wip/exalm/activatable' into 'master' (*)
  4f16e66... theme: Specificity bump for dropdowns (*)
  9066078... Merge branch 'wip/exalm/activatable2' into 'master' (*)
  c1fbf65... build: Check CI envvars before rev-parse (*)
  8670034... Merge branch 'ebassi/rev-parse-fallback' into 'master' (*)
  f003a4c... gtkwindow: Simplify GTK grab notification (*)
  0a5d21c... gtkwindow: Rename function (*)
  6b7b232... gtkwindow: Fix "shadowed" checks for GTK grabs (*)
  ab6e4bf... Merge branch 'wip/carlosg/reset-after-grab' into 'master' (*)
  0a1e095... demos/gtk-demo|widget-factory: Temporarily disable gui_app 
  0cc129e... media/gstreamer: Support using GL for video for Windows
  1d1796d... gtkgstsink.c: Support EGL on Windows as well
  0f78034... gtkgstsink.c: Tell GstGL winsys type and API if needed
  4324f51... gen-demo-header.py: Fix running without git

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