clutter/pango: Mark helpers as private

As they were public only for clutter to be able to use them
from pango. So simplify that

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4004>

clutter/clutter/clutter-main.h

@@ -27,9 +27,6 @@
 #error "Only <clutter/clutter.h> can be included directly."
 #endif
 
-#include <pango/pango.h>
-#include <pango/pangocairo.h>
-
 #include "clutter/clutter-actor.h"
 #include "clutter/clutter-stage.h"
 #include "cogl/cogl.h"
@@ -160,40 +157,4 @@ void                    clutter_debug_set_max_render_time_constant (int max_rend
 CLUTTER_EXPORT
 ClutterTextDirection    clutter_get_text_direction (void);
 
-typedef void (* ClutterPipelineSetup) (CoglPipeline *pipeline,
-                                       gpointer      user_data);
-
-/**
- * clutter_ensure_glyph_cache_for_layout:
- * @layout: A #PangoLayout
- *
- * This updates any internal glyph cache textures as necessary to be
- * able to render the given @layout.
- *
- * This api should be used to avoid mid-scene modifications of
- * glyph-cache textures which can lead to undefined rendering results.
- */
-CLUTTER_EXPORT void
-clutter_ensure_glyph_cache_for_layout (PangoLayout *layout);
-
-/**
- * clutter_show_layout: (skip)
- * @framebuffer: A #CoglFramebuffer to draw too.
- * @layout: a #PangoLayout
- * @x: X coordinate to render the layout at
- * @y: Y coordinate to render the layout at
- * @color: color to use when rendering the layout
- *
- * Draws a solidly coloured @layout on the given @framebuffer at (@x,
- * @y) within the `framebuffer`'s current model-view coordinate space.
- */
-CLUTTER_EXPORT void
-clutter_show_layout (CoglFramebuffer        *framebuffer,
-                     PangoLayout            *layout,
-                     float                   x,
-                     float                   y,
-                     const CoglColor        *color,
-                     ClutterPipelineSetup    pipeline_setup,
-                     gpointer                pipeline_setup_userdata);
-
 G_END_DECLS

clutter/clutter/clutter-paint-nodes.c

@@ -30,6 +30,7 @@
 #include <pango/pango.h>
 
 #include "cogl/cogl.h"
+#include "clutter/pango/cogl-pango-private.h"
 #include "clutter/clutter-actor-private.h"
 #include "clutter/clutter-blur-private.h"
 #include "clutter/clutter-debug.h"

clutter/clutter/clutter-text.c

@@ -46,6 +46,7 @@
 
 #include "clutter/clutter-text.h"
 
+#include "clutter/pango/cogl-pango-private.h"
 #include "clutter/clutter-text-accessible-private.h"
 #include "clutter/clutter-actor-private.h"
 #include "clutter/clutter-animatable.h"

clutter/clutter/pango/cogl-pango-display-list.h

@@ -31,7 +31,7 @@
 #include <glib.h>
 
 #include "clutter/pango/cogl-pango-pipeline-cache.h"
-#include "clutter/clutter-main.h"
+#include "clutter/pango/cogl-pango-private.h"
 
 
 G_BEGIN_DECLS

clutter/clutter/pango/cogl-pango-private.h

@@ -44,6 +44,43 @@ G_BEGIN_DECLS
 PangoRenderer *
 _cogl_pango_renderer_new (CoglContext *context);
 
+/**
+ * clutter_ensure_glyph_cache_for_layout:
+ * @layout: A #PangoLayout
+ *
+ * This updates any internal glyph cache textures as necessary to be
+ * able to render the given @layout.
+ *
+ * This api should be used to avoid mid-scene modifications of
+ * glyph-cache textures which can lead to undefined rendering results.
+ */
+void
+clutter_ensure_glyph_cache_for_layout (PangoLayout *layout);
+
+
+typedef void (* ClutterPipelineSetup) (CoglPipeline *pipeline,
+                                       gpointer      user_data);
+
+/**
+ * clutter_show_layout: (skip)
+ * @framebuffer: A #CoglFramebuffer to draw too.
+ * @layout: a #PangoLayout
+ * @x: X coordinate to render the layout at
+ * @y: Y coordinate to render the layout at
+ * @color: color to use when rendering the layout
+ *
+ * Draws a solidly coloured @layout on the given @framebuffer at (@x,
+ * @y) within the `framebuffer`'s current model-view coordinate space.
+ */
+void
+clutter_show_layout (CoglFramebuffer        *framebuffer,
+                     PangoLayout            *layout,
+                     float                   x,
+                     float                   y,
+                     const CoglColor        *color,
+                     ClutterPipelineSetup    pipeline_setup,
+                     gpointer                pipeline_setup_userdata);
+
 G_DEFINE_AUTOPTR_CLEANUP_FUNC (PangoRenderer, g_object_unref)
 
 G_END_DECLS