pidgin/pidgin

Move PidginAccountChooser to GtkDropDown

20 months ago, Elliott Sales de Andrade
6f490dec468f
Move PidginAccountChooser to GtkDropDown

The chooser connects to the default account manager automatically.
Additionally, re-parent the `GtkTreeModelFilter` subclasses to `GtkFilter`, and use them on the `filter` property.

This also means the previous `filter_func` that was moved to `GtkFilter` in /r/1995 are now used again.

Testing Done:
Opened most of the affected dialogs. Disabled XMPP account and saw that it was removed from all connected-only filtered choosers. Re-enabled account and it was back in the choosers.

Confirmed that only XMPP, and not Demo accounts appeared in the two XMPP-specific plugins.

Request API is still only compile-tested.

Reviewed at https://reviews.imfreedom.org/r/1992/
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