[gnome-builder] preferences: move page implementation to private header

[Christian Hergert <chergert src gnome org>]

commit 67446d037c20804f17500fd9e07b9e33438623b0
Author: Christian Hergert <chergert redhat com>
Date:   Sat Sep 17 11:39:58 2016 -0700

    preferences: move page implementation to private header
    
    We'll need access to this later to simplify a bunch of code in the
    preferences engine.

 libide/preferences/ide-preferences-page-private.h |    9 +++++++++
 libide/preferences/ide-preferences-page.c         |   11 -----------
 2 files changed, 9 insertions(+), 11 deletions(-)
---
diff --git a/libide/preferences/ide-preferences-page-private.h 
b/libide/preferences/ide-preferences-page-private.h
index 80e4653..219febd 100644
--- a/libide/preferences/ide-preferences-page-private.h
+++ b/libide/preferences/ide-preferences-page-private.h
@@ -20,10 +20,19 @@
 #define IDE_PREFERENCES_PAGE_PRIVATE_H
 
 #include "preferences/ide-preferences-page.h"
+#include "preferences/ide-preferences-flow-box.h"
 #include "search/ide-pattern-spec.h"
 
 G_BEGIN_DECLS
 
+struct _IdePreferencesPage
+{
+  GtkBin                 parent_instance;
+  gint                   priority;
+  IdePreferencesFlowBox *box;
+  GHashTable            *groups_by_name;
+};
+
 void _ide_preferences_page_set_map  (IdePreferencesPage *self,
                                      GHashTable         *map);
 void _ide_preferences_page_refilter (IdePreferencesPage *self,
diff --git a/libide/preferences/ide-preferences-page.c b/libide/preferences/ide-preferences-page.c
index 6c76012..3a8e916 100644
--- a/libide/preferences/ide-preferences-page.c
+++ b/libide/preferences/ide-preferences-page.c
@@ -18,22 +18,11 @@
 
 #include <glib/gi18n.h>
 
-#include "ide-preferences-flow-box.h"
 #include "ide-preferences-group.h"
 #include "ide-preferences-group-private.h"
 #include "ide-preferences-page.h"
 #include "ide-preferences-page-private.h"
 
-struct _IdePreferencesPage
-{
-  GtkBin                 parent_instance;
-
-  gint                   priority;
-
-  IdePreferencesFlowBox *box;
-  GHashTable            *groups_by_name;
-};
-
 enum {
   PROP_0,
   PROP_PRIORITY,