Fix DND onto an empty icon view
Fix DND onto an empty icon view

This did not work due to a copy and paste bug from the time when
the treeview DND code was turned into iconview DND code. Fixes
bug 599484.

Lyude/gtk-,grubersjoe/adwaita,ahodesuka/gtk,davidgumberg/gtk,ahodesuka/gtk,grubersjoe/adwaita,davidt/gtk,alexlarsson/gtk,chergert/gtk,Sidnioulz/SandboxGtk,nacho/gtk-,Unity-Technologies/gtk,grubersjoe/adwaita,jadahl/gtk,Distrotech/gtk2,jessevdk/gtk,simokivimaki/gtk,chergert/gtk,ebassi/gtk,zsx/gtk,chergert/gtk,davidgumberg/gtk,ahodesuka/gtk,jigpu/gtk,johne53/MB3Gtk-2,msteinert/gtk,Sidnioulz/SandboxGtk,nacho/gtk-,alexlarsson/gtk,msteinert/gtk,chipx86/gtk,jigpu/gtk,davidgumberg/gtk,Adamovskiy/gtk,Sidnioulz/SandboxGtk,Adamovskiy/gtk,zsx/gtk,chergert/gtk,Unity-Technologies/gtk,grubersjoe/adwaita,davidgumberg/gtk,jigpu/gtk,msteinert/gtk,nacho/gtk-,nacho/gtk-,zsx/gtk,simokivimaki/gtk,ebassi/gtk,simokivimaki/gtk,ebassi/gtk,davidt/gtk,msteinert/gtk,Unity-Technologies/gtk,jadahl/gtk,jigpu/gtk,ahodesuka/gtk,alexlarsson/gtk,jadahl/gtk,Adamovskiy/gtk,Lyude/gtk-,msteinert/gtk,johne53/MB3Gtk-2,Adamovskiy/gtk,bratsche/gtk-,ebassi/gtk,Lyude/gtk-,msteinert/gtk,Distrotech/gtk2,davidgumberg/gtk,bratsche/gtk-,jigpu/gtk,grubersjoe/adwaita,ahodesuka/gtk,Lyude/gtk-,chergert/gtk,grubersjoe/adwaita,ahodesuka/gtk,jessevdk/gtk,chipx86/gtk,jigpu/gtk,chergert/gtk,chipx86/gtk,Sidnioulz/SandboxGtk,Unity-Technologies/gtk,Adamovskiy/gtk,Lyude/gtk-,ahodesuka/gtk,ahodesuka/gtk,ebassi/gtk,alexlarsson/gtk,Distrotech/gtk2,Distrotech/gtk,jessevdk/gtk,nacho/gtk-,johne53/MB3Gtk-2,chergert/gtk,ebassi/gtk,jessevdk/gtk,Distrotech/gtk2,davidt/gtk,alexlarsson/gtk,bratsche/gtk-,davidt/gtk,jessevdk/gtk,Sidnioulz/SandboxGtk,Sidnioulz/SandboxGtk,johne53/MB3Gtk-2,Lyude/gtk-,Distrotech/gtk,Distrotech/gtk,jadahl/gtk,alexlarsson/gtk,davidt/gtk,Lyude/gtk-,jadahl/gtk,Distrotech/gtk2,alexlarsson/gtk,davidt/gtk,Adamovskiy/gtk,chipx86/gtk,simokivimaki/gtk,chipx86/gtk,Distrotech/gtk,jadahl/gtk,grubersjoe/adwaita,Lyude/gtk-,Adamovskiy/gtk,Unity-Technologies/gtk,davidgumberg/gtk,jadahl/gtk,chergert/gtk,zsx/gtk,Distrotech/gtk,bratsche/gtk-,jadahl/gtk,jessevdk/gtk,zsx/gtk,bratsche/gtk-,davidgumberg/gtk,simokivimaki/gtk,johne53/MB3Gtk-2,simokivimaki/gtk,jigpu/gtk,jessevdk/gtk,grubersjoe/adwaita,Distrotech/gtk2,alexlarsson/gtk,davidgumberg/gtk,Adamovskiy/gtk,bratsche/gtk-,jigpu/gtk