...as follow-up clean-up after 71fefe1d "Change
'blink times' to be of type sal_uInt64 and thus consistent with
Timer::Get/SetTimeout since 9c7016b5 'Scheduler:
Changed uLong to uInt32/uInt64.'"

Transitively meant to change quite a number of further time-related places from
sal_uLong/sal_uIntPtr to consistently use sal_uInt64.

Change-Id: I38eb493943906356138bf58eb098d2f54a3dee34
Reviewed-on: https://gerrit.libreoffice.org/15214Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Tested-by: Stephan Bergmann <sbergman@redhat.com>