[totem] browser-plugin: Fix possible warnings when destroyed

[Bastien Nocera <hadess src gnome org>]

commit dec323d0a3cd23274f05ba8b589d12a03bfb8ecf
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Jan 21 11:23:34 2011 +0000

    browser-plugin: Fix possible warnings when destroyed
    
    Each time the widget was left, we would add a new timeout, without
    removing the old one. This could cause warnings once the widget
    was destroyed.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=640109

 browser-plugin/totem-glow-button.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/browser-plugin/totem-glow-button.c b/browser-plugin/totem-glow-button.c
index ae1cea2..befa49c 100644
--- a/browser-plugin/totem-glow-button.c
+++ b/browser-plugin/totem-glow-button.c
@@ -216,6 +216,7 @@ totem_glow_button_enter (GtkButton *buttonw)
 	button->pointer_entered = TRUE;
 	button->anim_finished = FALSE;
 	button->glow_start_time = G_MINDOUBLE;
+	totem_glow_button_set_timeout (button, FALSE);
 }
 
 static void
@@ -281,10 +282,14 @@ totem_glow_button_new (void)
 	return g_object_new (TOTEM_TYPE_GLOW_BUTTON, NULL);
 }
 
+/* We can only add a timeout once, we assert that, though
+ * calling it multiple times to disable the animation is fine */
 static void
 totem_glow_button_set_timeout (TotemGlowButton *button, gboolean set_timeout)
 {
 	if (set_timeout != FALSE) {
+		g_assert (button->button_glow == 0);
+
 		button->glow_start_time = 0.0;
 
 		/* The animation doesn't speed up or slow down based on the