[gtk] gl: Move shaderbuilder into gl/ subdirectory

[Timm Bäder <baedert src gnome org>]

commit e35132054e93f31d30f8dc6a06b7bf75f3a1fe15
Author: Timm Bäder <mail baedert org>
Date:   Thu Mar 15 15:06:46 2018 +0100

    gl: Move shaderbuilder into gl/ subdirectory
    
    It only handles OpenGL shaders.

 gsk/{ => gl}/gskshaderbuilder.c        | 0
 gsk/{ => gl}/gskshaderbuilderprivate.h | 0
 gsk/meson.build                        | 2 +-
 3 files changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gsk/gskshaderbuilder.c b/gsk/gl/gskshaderbuilder.c
similarity index 100%
rename from gsk/gskshaderbuilder.c
rename to gsk/gl/gskshaderbuilder.c
diff --git a/gsk/gskshaderbuilderprivate.h b/gsk/gl/gskshaderbuilderprivate.h
similarity index 100%
rename from gsk/gskshaderbuilderprivate.h
rename to gsk/gl/gskshaderbuilderprivate.h
diff --git a/gsk/meson.build b/gsk/meson.build
index 964cee1b2e..e5a66313d3 100644
--- a/gsk/meson.build
+++ b/gsk/meson.build
@@ -35,7 +35,7 @@ gsk_private_sources = files([
   'gskdebug.c',
   'gskprivate.c',
   'gskprofiler.c',
-  'gskshaderbuilder.c',
+  'gl/gskshaderbuilder.c',
   'gl/gskglprofiler.c',
   'gl/gskglrenderer.c',
   'gl/gskglglyphcache.c',