crash-sender: set timeout to 4 hours

A single run of crash_sender might take some time to upload a report
(if the connection is pretty slow).  Give the system 4 hours to upload
at least one report.

BUG=chromium:377981
TEST=`cbuildbot x86-generic-full` passes
CQ-DEPEND=CL:201719

Change-Id: I4d3870b961653c7f0ca85e1015f371919125e846
Reviewed-on: https://chromium-review.googlesource.com/201404
Reviewed-by: Gaurav Shah <gauravsh@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
1 file changed