Rui Matos a7562b4148 screenShield: Stop using an offscreen buffer for the arrow actor
This isn't a performance critical actor and the NVIDIA driver discards
offscreen buffers in some cases which would require us to go through
extra hoops to handle here which isn't worth it.

https://bugzilla.gnome.org/show_bug.cgi?id=739178
2016-06-28 19:53:17 +02:00
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