Do not cache layers in the backends

se g_object_set_data instead, to attach the backend object to the
evince layer.

Based on evince commit: 08993c59369086fa8916236f580438d656ccb8f7
From: Carlos Garcia Campos <[email protected]>

2 files changed, 4 insertions, 17 deletions

diff --git a/libdocument/ev-layer.c b/libdocument/ev-layer.c
index cb86cca4..cb735164 100644
--- a/libdocument/ev-layer.c
+++ b/libdocument/ev-layer.c
@@ -22,9 +22,8 @@
 #include "ev-layer.h"
 
 struct _EvLayerPrivate {
-	guint      id;
-	gboolean   is_parent;
-	gint       rb_group;
+	gboolean is_parent;
+	gint     rb_group;
 };
 
 #define EV_LAYER_GET_PRIVATE(object) \
@@ -47,28 +46,18 @@ ev_layer_init (EvLayer *layer)
 }
 
 EvLayer *
-ev_layer_new (guint    layer_id,
-	      gboolean is_parent,
+ev_layer_new (gboolean is_parent,
 	      gint     rb_group)
 {
 	EvLayer *layer;
 
 	layer = EV_LAYER (g_object_new (EV_TYPE_LAYER, NULL));
-	layer->priv->id = layer_id;
 	layer->priv->is_parent = is_parent;
 	layer->priv->rb_group = rb_group;
 
 	return layer;
 }
 
-guint
-ev_layer_get_id (EvLayer *layer)
-{
-	g_return_val_if_fail (EV_IS_LAYER (layer), 0);
-
-	return layer->priv->id;
-}
-
 gboolean
 ev_layer_is_parent (EvLayer *layer)
 {
diff --git a/libdocument/ev-layer.h b/libdocument/ev-layer.h
index f87c9e08..656d2994 100644
--- a/libdocument/ev-layer.h
+++ b/libdocument/ev-layer.h
@@ -50,10 +50,8 @@ struct _EvLayerClass {
 };
 
 GType     ev_layer_get_type     (void) G_GNUC_CONST;
-EvLayer  *ev_layer_new          (guint    layer_id,
-				 gboolean is_parent,
+EvLayer  *ev_layer_new          (gboolean is_parent,
 				 gint     rb_group);
-guint     ev_layer_get_id       (EvLayer *layer);
 gboolean  ev_layer_is_parent    (EvLayer *layer);
 gint      ev_layer_get_rb_group (EvLayer *layer);