fix [2297155] SurfaceFlinger's freeze-timeout doesn't work

There was bug in the logic that calculated the relative timeout, the start time was
reset each time an event was received, which caused the timeout to never occur if
an application was constantly redrawing.

Now we always check for a timeout when we come back from the waitEvent() and
process the "anti-freeze" if needed, regardless of whether an event was received.

0 files changed, 0 insertions, 0 deletions