[gtk/matthiasc/for-master] (6 commits) ...widget: Add gtk_widget_get_size()

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  f4705ba... Adwaita: limit scope of :backdrop (*)
  8bab7b2... Merge branch 'matthiasc/for-master' into 'master' (*)
  3a8ebf4... Merge branch 'wip/jimmac/backdrop-assasination' into 'maste (*)
  1ef8053... builder: Allow <property bind /> for objects
  3c1cca1... wayland: Remove function declaration for nonexisting functi
  f1d6a0a... widget: Add gtk_widget_get_size()

(*) This commit already existed in another branch; no separate mail sent