Fix set_window_size not setting the correct size on OSX
Fix set_window_size not setting the correct size on OSX

(cherry picked from commit 38de4d24efb51e70302fd08c819241db5ec545ad)

pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1