[gtk+/wip/carlosg/event-delivery-cleanups: 20/30] gtkbutton: Remove enter/leave event handlers

[Carlos Garnacho <carlosg src gnome org>]

commit 965334dcc6091486f412dcdc8b2a286ed0d0f60e
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Sep 15 16:28:37 2017 +0200

    gtkbutton: Remove enter/leave event handlers
    
    They just maintain priv->in_button and widget state up-to-date, this
    basically matters during user interaction, and is already maintained
    in the gesture ::update handler. This seems to be sufficient.

 gtk/gtkbutton.c |   32 --------------------------------
 1 files changed, 0 insertions(+), 32 deletions(-)
---
diff --git a/gtk/gtkbutton.c b/gtk/gtkbutton.c
index 592fa10..e56d940 100644
--- a/gtk/gtkbutton.c
+++ b/gtk/gtkbutton.c
@@ -122,10 +122,6 @@ static void gtk_button_unrealize (GtkWidget * widget);
 static gint gtk_button_grab_broken (GtkWidget * widget,
                                    GdkEventGrabBroken * event);
 static gint gtk_button_key_release (GtkWidget * widget, GdkEventKey * event);
-static gint gtk_button_enter_notify (GtkWidget * widget,
-                                    GdkEventCrossing * event);
-static gint gtk_button_leave_notify (GtkWidget * widget,
-                                    GdkEventCrossing * event);
 static void gtk_real_button_clicked (GtkButton * button);
 static void gtk_real_button_activate  (GtkButton          *button);
 static void gtk_button_update_state   (GtkButton          *button);
@@ -208,8 +204,6 @@ gtk_button_class_init (GtkButtonClass *klass)
   widget_class->unrealize = gtk_button_unrealize;
   widget_class->grab_broken_event = gtk_button_grab_broken;
   widget_class->key_release_event = gtk_button_key_release;
-  widget_class->enter_notify_event = gtk_button_enter_notify;
-  widget_class->leave_notify_event = gtk_button_leave_notify;
   widget_class->state_flags_changed = gtk_button_state_flags_changed;
   widget_class->grab_notify = gtk_button_grab_notify;
   widget_class->unmap = gtk_button_unmap;
@@ -798,32 +792,6 @@ gtk_button_key_release (GtkWidget   *widget,
     return FALSE;
 }
 
-static gboolean
-gtk_button_enter_notify (GtkWidget        *widget,
-                        GdkEventCrossing *event)
-{
-  GtkButton *button = GTK_BUTTON (widget);
-  GtkButtonPrivate *priv = button->priv;
-
-  priv->in_button = TRUE;
-  gtk_button_update_state (button);
-
-  return FALSE;
-}
-
-static gboolean
-gtk_button_leave_notify (GtkWidget        *widget,
-                        GdkEventCrossing *event)
-{
-  GtkButton *button = GTK_BUTTON (widget);
-  GtkButtonPrivate *priv = button->priv;
-
-  priv->in_button = FALSE;
-  gtk_button_update_state (button);
-
-  return FALSE;
-}
-
 static void
 gtk_real_button_clicked (GtkButton *button)
 {