Corrected GetDrawBackgrdColor to return a value, not a reference, removed unused var
#i125003# fix google-test for osl_condition in the sal module

the test didn't initialize the nanosecond part of the condition timeout and so
the absolute timeout calculated from the second and nanosecond values could
become invalid depending on the pseudo-random value of the nanosecond member.
This resulted in spurious gtest failures (first seen on Ubuntu).