Fix for Debug crasher in safe browsing updater.
Fix for Debug crasher in safe browsing updater.

BUG= 20411
TEST= none

Review URL: http://codereview.chromium.org/463047

git-svn-id: http://src.chromium.org/svn/trunk/src@34594 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: dcb85186cc597e1292daace9a5e4bd7c6b3b1ef3
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