Fix clang/win build after https://codereview.chromium.org/1348363003

kRescheduleTimeOutDelay is no longer used after that change, causing a
compiler warning.

BUG=514813,82385
TBR=sunnyps@chromium.org

Review URL: https://codereview.chromium.org/1352003003 .

Cr-Commit-Position: refs/heads/master@{#349848}
1 file changed