tree 4a7829a83e1b4fc5710a21dc56fe1ba1bbacee6a
parent 5d5816c484f124ca52c53cd434955b9782a486a5
author Mathias Agopian <mathias@google.com> 1312941344 -0700
committer Mathias Agopian <mathias@google.com> 1312941344 -0700

Add a priority constant in to the graphics HAL header

this is needed if a display/gpu driver needs to create
service threads that can block the main ui thread.
to avoid priority inversions, these must run at
HAL_PRIORITY_URGENT_DISPLAY

Change-Id: I3af592e05a6d1b6f39a2b7885a7c842e54abfce2