[gtk/wip/otte/paintable: 51/62] snapshot: "Inherit" from GdkSnapshot

[Benjamin Otte <otte src gnome org>]

commit ca2d189eda61ec6f7d7c604b8c5ead596244d083
Author: Benjamin Otte <otte redhat com>
Date:   Fri Feb 16 06:30:48 2018 +0100

    snapshot: "Inherit" from GdkSnapshot
    
    This is a neat trick to get around the circularity between GDK, GSK and
    GTK that we inherit with the GdkPaintable interface.
    
    GdkPaintable uses GtkSnapshot
    GtkSnapshot creates GskRenderNodes
    GskRenderNodes use GdkTextures
    GdkTexture will soon implement GdkPaintable
    
    This causes a loop that spans GDK, GSK and GTK and this is the easiest
    way to resolve it without breaking bindings (at least that's the idea).

 gtk/gtksnapshotprivate.h | 2 +-
 gtk/gtktypes.h           | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtksnapshotprivate.h b/gtk/gtksnapshotprivate.h
index 1319df7d7b..1e38fb86d1 100644
--- a/gtk/gtksnapshotprivate.h
+++ b/gtk/gtksnapshotprivate.h
@@ -80,7 +80,7 @@ struct _GtkSnapshotState {
   } data;
 };
 
-struct _GtkSnapshot {
+struct _GdkSnapshot {
   gboolean               record_names;
   GskRenderer           *renderer;
   GArray                *state_stack;
diff --git a/gtk/gtktypes.h b/gtk/gtktypes.h
index c38a845165..b7298d00db 100644
--- a/gtk/gtktypes.h
+++ b/gtk/gtktypes.h
@@ -39,7 +39,7 @@ typedef struct _GtkClipboard         GtkClipboard;
 typedef struct _GtkRequisition        GtkRequisition;
 typedef struct _GtkSelectionData       GtkSelectionData;
 typedef struct _GtkSettings            GtkSettings;
-typedef struct _GtkSnapshot            GtkSnapshot;
+typedef GdkSnapshot                    GtkSnapshot;
 typedef struct _GtkStyleContext        GtkStyleContext;
 typedef struct _GtkTooltip             GtkTooltip;
 typedef struct _GtkWidget              GtkWidget;