widget: No need to hold GDK lock for signal emit
widget: No need to hold GDK lock for signal emit

In one instance, we were holding the GDK lock just to emit a signal.
That's not necessary.

wmvanvliet/Chimara,wmvanvliet/Chimara,wmvanvliet/Chimara,wmvanvliet/Chimara,wmvanvliet/Chimara