[empathy] empathy-log-window: add missing cast to fix build

[Daniel Boles <dboles src gnome org>]

commit 83141ce2791e5e6aac589c337532f537f5cd1fd3
Author: Daniel Boles <dboles src gnome org>
Date:   Wed Nov 30 23:18:22 2016 +0000

    empathy-log-window: add missing cast to fix build
    
    This arose in commit d28a6772cfdaf1539b09b8744791c2d448737f8a.

 libempathy-gtk/empathy-log-window.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libempathy-gtk/empathy-log-window.c b/libempathy-gtk/empathy-log-window.c
index 79e3804..7bf33c8 100644
--- a/libempathy-gtk/empathy-log-window.c
+++ b/libempathy-gtk/empathy-log-window.c
@@ -752,7 +752,7 @@ empathy_log_window_init (EmpathyLogWindow *self)
       self->priv->gsettings_desktop,
       EMPATHY_PREFS_DESKTOP_INTERFACE_FONT_NAME);
 
-    g_object_set (webkit_web_view_get_settings (self->priv->webview),
+    g_object_set (webkit_web_view_get_settings (WEBKIT_WEB_VIEW (self->priv->webview)),
         "default-encoding", "utf8",
         NULL);