Rename GtkActionHelper private header

Follow the naming scheme for private headers.

gtk/gtkactionhelper.c

@@ -17,10 +17,9 @@
  * Authors: Ryan Lortie <desrt@desrt.ca>
  */
 
-#include "gtkactionhelper.h"
+#include "gtkactionhelperprivate.h"
 #include "gtkactionobservable.h"
 
-#include "gtkwidget.h"
 #include "gtkwidgetprivate.h"
 #include "gtkdebug.h"
 #include "gtkmodelbutton.h"

gtk/gtkbutton.c

@@ -69,7 +69,7 @@
 #include "gtkintl.h"
 #include "a11y/gtkbuttonaccessible.h"
 #include "gtkapplicationprivate.h"
-#include "gtkactionhelper.h"
+#include "gtkactionhelperprivate.h"
 #include "gtkcontainerprivate.h"
 
 /* Time out before giving up on getting a key release when animating

gtk/gtkbuttonprivate.h

@@ -19,7 +19,7 @@
 #ifndef __GTK_BUTTON_PRIVATE_H__
 #define __GTK_BUTTON_PRIVATE_H__
 
-#include "gtkactionhelper.h"
+#include "gtkactionhelperprivate.h"
 #include "gtkgesturesingle.h"
 
 G_BEGIN_DECLS

gtk/gtklistbox.c

@@ -17,7 +17,7 @@
 
 #include "config.h"
 
-#include "gtkactionhelper.h"
+#include "gtkactionhelperprivate.h"
 #include "gtkadjustmentprivate.h"
 #include "gtkcssnodeprivate.h"
 #include "gtklistbox.h"

gtk/gtkmenuitemprivate.h

@@ -19,7 +19,7 @@
 #define __GTK_MENU_ITEM_PRIVATE_H__
 
 #include <gtk/gtkmenuitem.h>
-#include <gtk/gtkactionhelper.h>
+#include <gtk/gtkactionhelperprivate.h>
 #include <gtk/gtkcssnodeprivate.h>
 #include <gtk/gtkeventcontrollermotion.h>
 

gtk/gtkswitch.c

@@ -59,7 +59,7 @@
 #include "gtkmarshalers.h"
 #include "gtkactionable.h"
 #include "a11y/gtkswitchaccessible.h"
-#include "gtkactionhelper.h"
+#include "gtkactionhelperprivate.h"
 #include "gtkwidgetprivate.h"
 #include "gtkprogresstrackerprivate.h"
 #include "gtksettingsprivate.h"