Linux: fix libevent bug.
Linux: fix libevent bug.

r17436 exposed a libevent bug where an array is not resized to a large
enough size when it's one element too short.

This bug will be upstreamed to libevent.

http://codereview.chromium.org/112089
BUG=11999


git-svn-id: http://src.chromium.org/svn/trunk/src@17449 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 862d39c41628df49eab654a6f77640a228bfd702
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser