[gtk: 1/2] gtkstyleprovider: Rename -gtk-style-changed signal to have a valid name

[Matthias Clasen <matthiasc src gnome org>]

commit 13f4d639fda16be1a2d43bd2629b77ce1042da19
Author: Philip Withnall <withnall endlessm com>
Date:   Tue Nov 12 19:51:33 2019 +0000

    gtkstyleprovider: Rename -gtk-style-changed signal to have a valid name
    
    Signal names must start with a letter. They can’t start with a hyphen.
    
    It was originally added in commit 74f4c6f6bd755967 with no given reason
    for why the signal name was chosen as it was.
    
    Signed-off-by: Philip Withnall <withnall endlessm com>

 gtk/gtkstylecascade.c  | 4 ++--
 gtk/gtkstylecontext.c  | 2 +-
 gtk/gtkstyleprovider.c | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkstylecascade.c b/gtk/gtkstylecascade.c
index 4c94696742..d0010de2be 100644
--- a/gtk/gtkstylecascade.c
+++ b/gtk/gtkstylecascade.c
@@ -294,7 +294,7 @@ _gtk_style_cascade_set_parent (GtkStyleCascade *cascade,
     {
       g_object_ref (parent);
       g_signal_connect_swapped (parent,
-                                "-gtk-private-changed",
+                                "gtk-private-changed",
                                 G_CALLBACK (gtk_style_provider_changed),
                                 cascade);
     }
@@ -325,7 +325,7 @@ _gtk_style_cascade_add_provider (GtkStyleCascade  *cascade,
   data.provider = g_object_ref (provider);
   data.priority = priority;
   data.changed_signal_id = g_signal_connect_swapped (provider,
-                                                     "-gtk-private-changed",
+                                                     "gtk-private-changed",
                                                      G_CALLBACK (gtk_style_provider_changed),
                                                      cascade);
 
diff --git a/gtk/gtkstylecontext.c b/gtk/gtkstylecontext.c
index 7ba0c3f61d..2072dd8a3b 100644
--- a/gtk/gtkstylecontext.c
+++ b/gtk/gtkstylecontext.c
@@ -265,7 +265,7 @@ gtk_style_context_set_cascade (GtkStyleContext *context,
     {
       g_object_ref (cascade);
       priv->cascade_changed_id = g_signal_connect (cascade,
-                                                   "-gtk-private-changed",
+                                                   "gtk-private-changed",
                                                    G_CALLBACK (gtk_style_context_cascade_changed),
                                                    context);
     }
diff --git a/gtk/gtkstyleprovider.c b/gtk/gtkstyleprovider.c
index b9c19cd206..c454f19c1e 100644
--- a/gtk/gtkstyleprovider.c
+++ b/gtk/gtkstyleprovider.c
@@ -45,7 +45,7 @@ static guint signals[LAST_SIGNAL];
 static void
 gtk_style_provider_default_init (GtkStyleProviderInterface *iface)
 {
-  signals[CHANGED] = g_signal_new (I_("-gtk-private-changed"),
+  signals[CHANGED] = g_signal_new (I_("gtk-private-changed"),
                                    G_TYPE_FROM_INTERFACE (iface),
                                    G_SIGNAL_RUN_LAST,
                                    G_STRUCT_OFFSET (GtkStyleProviderInterface, changed),